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One of the most important aspects of CastleAI, and indeed the main reason that is represents a significant improvement over CubeTutorAI is its ability to draft to a strategy.

Imagine that you first picked an Animate Dead and along comes the second pack with amongst other things Damnation, Doom Blade and Entomb. What do you pick? CubeTutorAI would say "Damnation is the highest rated card so I will pick it". Whilst it is reasonable in a naive case to just pick the "best" card in your colours, most human drafters don't think that way. They will ask the question, "Which of these cards works the best with the cards that I've already chosen?". The clear answer to that question in this case is Entomb which combos well with Animate Dead and will send our draft in a Reanimator direction.

CastleAI thinks like this too!

The first few picks in a draft are informed mostly by Card Quality and Signal Strength but as the draft progresses Castle AI builds up a model of the strategy or strategies that it is drafting towards. In order to do so it needs to have some knowledge of what the cards that it's drafting actually do! Enter The Categoriser! Thanks to you guys, The Cube Tutor community we now have an extensive database detailing the main function of thousands of cards.

You can see the tags for a card by clicking on a card name or picture anywhere on the site, e.g. Ancestral Recall,. To see a list of all cards marked with a particular tag, just click on that Tag: Card Draw

Strategy Elements

A CastleAI Strategy has a few key elements
  • Required Tags - Without posessing card(s) with these properties it is impossible to be in the strategy. For example you must have a Reanimation Spell to be a Reanimator deck.
  • High Priority - Cards with these properties are the bread and butter of the strategy and will fill out the majority of the final deck.
  • Low Priority - It is desirable to draft cards with these properties.
  • Unwanted Tags - Cards with these properties will be actively avoided.
  • Primary Colours - The colours that best support the strategy.
  • Curve Template - The desired curve differs from strategy to strategy.

Contributing to the Pick Decision

Strategy is just one aspect of CastleAI and contributes to the final pick decision by scoring each card in a pack. A card will score well for strategy if it has more Required properties, High or Low Priority properties is in a Primary Colour and fits well on the curve of our previously drafted cards.

Fully Extensible

Below you will see a complete definition of all of the strategies that are currently supported by Castle AI. It is straightforward to add new strategies and modify existing ones so this page will serve as a living document of the current strategies supported in Castle AI. If you would like to propose a new strategy for the AI, then please suggest it!

aggrostrategy

primarycoloursGreen  Blue  Red  White  Black 
highpriorityAnthemMass PumpRemoval (Non Land Permanent)Removal (Damage)Removal (Exile)Removal (Edict)Removal (Creature)AggroAnti-DrawAnti-ControlMass Removal (Land)Direct DamageEvasionRemoval (Land)BounceCombat TrickBounce (Creature)TempoPump
lowpriorityMass BounceCard AdvantageSac Outlet (Creature)Removal (Artifact)Removal (Permanent)Cares About (Small Hand Size)Control (Creature)Bounce (Own Creature)Cares About (Creature)Anti-AggroCares About (Power)Threaten EffectTutor (All)Anti-RemovalTutor (Creature)TapperRemoval (Enchantment)Lure EffectClone (Creature)Anti-Life GainDeath TriggerCard FilterCard SelectionManlandAnti (Control Creature)SaboteurRecursion (Creature)Card Draw
unwantedtagsFinisherMass Removal (Creature)Mass RemovalReanimation Target

controlstrategy

primarycoloursGreen  Blue  Red  White  Black 
highpriorityTutor (All)Tutor (Creature)Removal (Non Land Permanent)Removal (Damage)Removal (Permanent)Removal (Exile)Removal (Edict)Removal (Creature)Mass RemovalMass Removal (Creature)CantripCard SelectionCard DrawFinisherCounterspellManlandHand DisruptionAcceleration
lowpriorityTutor (Enchantment)Mass BounceCares About (Few Creature)BounceCard AdvantageClone (Instant)Removal (Land)FatesealControl (Player)Removal (Artifact)Removal (Planeswalker)Clone (Sorcery)Control (Creature)Tutor (Equipment)Needle EffectExtra TurnAnti-AggroDiscardAnti-RemovalFattieAnti-TokensShuffleRemoval (Non Creature Permanent)TapperRemoval (Enchantment)Tutor (Land)Life GainClone (Creature)Combat TrickCares About (Big Hand Size)Fog EffectCard FilterTutor (Sorcery)Tutor (Instant)Tutor (Artifact)Control (Permanent)
unwantedtagsCares About (Creature)AggroStormFinisherCard Disadvantage

artifactsstrategy

primarycoloursBlue  Red  Black 
requiredtagsCares About (Artifact Creature)Cares About (Artifact)
highpriorityClone (Artifact)Stasis EffectSac Outlet (Artifact)Recursion (Artifact)Cares About (Artifact Creature)Cares About (Artifact)Cheat Into Play (Equipment)Cheat Into Play (Artifact)Tutor (Artifact)Tutor (All)Tutor (Equipment)Manland
lowpriorityBounce (Own Artifact)Card AdvantageNeedle EffectCard SelectionManlandAnti-ControlBounce (Artifact)Card DrawRemoval (Creature)
unwantedtags

discardstrategy

primarycoloursBlack 
highpriorityCares About (Discard)DiscardAnti-DrawGraveyard HateRecursion (Land)Recursion (Instant)Recursion (All)Recursion (Enchantment)Recursion (Sorcery)Recursion (Creature)Recursion (Artifact)
lowpriorityCard AdvantageNeedle EffectManlandAnti-ControlCard DrawRemoval (Creature)
unwantedtags

dredgestrategy

primarycoloursGreen  Blue  Black 
highpriorityDiscard OutletCares About (Discard)DiscardCantripCard FilterCard SelectionCares About (Graveyard)Recursion (Land)Recursion (Instant)Recursion (All)Recursion (Enchantment)Recursion (Sorcery)Recursion (Creature)Recursion (Artifact)Self Mill
lowpriorityCard AdvantageFog EffectDeath TriggerGraveyard HateTutor (Sorcery)ManlandTutor (Instant)Reanimation TargetTutor (All)Reanimation SpellTutor (Creature)Card Draw
unwantedtagsUn-Reanimatable

tokensstrategy

primarycoloursGreen  Red  White 
highpriorityAccelerationStax EffectStasis EffectSac Outlet (Creature)Sac Outlet (Permanent)AnthemMass PumpLure EffectTokensCares About (Tokens)
lowpriorityMass BounceCard AdvantageEnters The Battlefield TriggerAnti-DrawRemoval (Permanent)Removal (Planeswalker)Bounce (Own Creature)Cares About (Creature)Extra TurnRemoval (Non Land Permanent)Tutor (All)Anti-TokensTutor (Creature)Anti-ControlPumpClone (Creature)AggroCombat TrickDeath TriggerRemoval (Creature)Removal (Damage)Direct DamageCard DrawBlink
unwantedtags

reanimatorstrategy

primarycoloursBlue  Red  Black 
requiredtagsReanimation Spell
highpriorityRecursion (Land)Recursion (Instant)Recursion (All)Recursion (Sorcery)Recursion (Creature)Recursion (Artifact)Removal (Non Land Permanent)Removal (Damage)Removal (Permanent)Removal (Exile)Removal (Edict)Removal (Creature)Card AdvantageDraw 7CantripCard FilterCard SelectionCard DrawReanimation SpellReanimation TargetFattieTutor (All)Tutor (Creature)Cheat Into Play (Creature)Cheat Into Play (Non Land Permanent)Cheat Into Play (Permanent)Self MillDiscard OutletReanimation SpellSelf Recursion
lowpriorityMass RemovalSac Outlet (Creature)DiscardMass Removal (Creature)AccelerationMillCares About (Graveyard)Shuffle
unwantedtagsUn-Reanimatable

rampstrategy

primarycoloursGreen 
requiredtagsAccelerationFattie
highpriorityMass Removal (Land)Cheat Into Play (Creature)Cheat Into Play (Non Land Permanent)Cheat Into Play (Permanent)Ritual EffectAccelerationRemoval (Non Land Permanent)Removal (Damage)Removal (Permanent)Removal (Exile)Removal (Edict)Removal (Creature)Fattie
lowpriorityCard AdvantageCard FilterCard SelectionRemoval (Permanent)Removal (Planeswalker)Removal (Creature)Cares About (Creature)Removal (Non Land Permanent)Anti-AggroRemoval (Damage)Tutor (All)Anti-RemovalTutor (Creature)Card Draw
unwantedtagsCard Disadvantage

stormstrategy

primarycoloursBlue  Red  Black 
requiredtagsStorm
highpriorityStormExtra TurnUntap LandsAccelerationDraw 7Recursion (Instant)Recursion (All)Recursion (Sorcery)Ritual EffectFree SpellCard FilterCard SelectionCard DrawTutor (All)Removal (Damage)Direct DamageTutor (Artifact)
lowprioritySilence EffectCard AdvantageMass RemovalAnti-AggroClone (Spell)Manland
unwantedtagsAggro