AI DraftFeb 26, 2026
Marauding Raptor + Polyraptor
Overview
Marauding Raptor reduces Polyraptor’s generic mana cost by 
but cannot reduce its colored mana requirement [Ruling [2019-07-12]]. When Polyraptor enters the battlefield, Marauding Raptor’s triggered ability will trigger and, when it resolves, deal 2 damage to Polyraptor (and give the Raptor +2/+0 because Polyraptor is a Dinosaur). That damage will cause Polyraptor’s Enrage triggered ability to trigger; when that Enrage resolves it creates a Polyraptor token, which in turn causes Marauding Raptor’s trigger again. This repeats, creating a repeating chain of triggers and tokens (a non-terminating loop of triggered abilities) while the chain continues to resolve .
but cannot reduce its colored mana requirement [Ruling [2019-07-12]]. When Polyraptor enters the battlefield, Marauding Raptor’s triggered ability will trigger and, when it resolves, deal 2 damage to Polyraptor (and give the Raptor +2/+0 because Polyraptor is a Dinosaur). That damage will cause Polyraptor’s Enrage triggered ability to trigger; when that Enrage resolves it creates a Polyraptor token, which in turn causes Marauding Raptor’s trigger again. This repeats, creating a repeating chain of triggers and tokens (a non-terminating loop of triggered abilities) while the chain continues to resolve .Step 1
You cast Polyraptor while you control Marauding Raptor. Marauding Raptor reduces only the generic portion of Polyraptor’s cost, so Polyraptor’s cost becomes 
(it still requires its green mana) [Ruling [2019-07-12]].
(it still requires its green mana) [Ruling [2019-07-12]].Step 2
Polyraptor’s spell resolves and its controller puts it onto the battlefield .
Step 3
Marauding Raptor’s ability “Whenever another creature you control enters” triggers because Polyraptor entered the battlefield; that triggered ability is put on the stack and later resolves .
Step 4
When Marauding Raptor’s triggered ability resolves it deals 2 damage to the entering creature (Polyraptor). Because damage to creatures is marked, 2 damage is marked on Polyraptor .
Step 5
Because Polyraptor is a Dinosaur and it was dealt damage by Marauding Raptor’s ability, Marauding Raptor’s ability also grants itself +2/+0 until end of turn as part of that same resolution.
Step 6
The damage dealt to Polyraptor is a trigger event for Polyraptor’s Enrage ability (“Whenever this creature is dealt damage, create a token that’s a copy of this creature”). Polyraptor’s Enrage triggered ability is created and will be put on the stack as a triggered ability resolves and triggers are handled .
Step 7
When Polyraptor’s Enrage resolves it creates a token that’s a copy of Polyraptor. That token enters the battlefield under its controller’s control .
Step 8
The new token entering causes Marauding Raptor’s “another creature you control enters” ability to trigger again, and the loop repeats: Raptor’s ability will deal 2 damage to the token, marking damage and triggering that token’s Enrage, which when it resolves creates another token, etc. Damage marking and state-based death checks happen as appropriate .
Resolution
Sequence: cast Polyraptor for if you control Marauding Raptor (the Raptor reduces only generic cost) [Ruling [2019-07-12]]; Polyraptor enters the battlefield ; Marauding Raptor’s “another creature enters” trigger goes on the stack and eventually resolves, dealing 2 damage to Polyraptor and granting Marauding Raptor +2/+0 (because a Dinosaur was dealt damage this way) ; Polyraptor’s Enrage then triggers from having been dealt damage and will create a token copy when it resolves; that token entering re-triggers the Raptor’s ability and the loop continues. Damage is marked on creatures as appropriate , and triggered abilities created by those events are handled as triggered abilities are placed on the stack . The mechanical result is an unbounded sequence of triggered abilities producing more Polyraptor tokens until an external effect or rule stops it.
if you control Marauding Raptor (the Raptor reduces only generic cost) [Ruling [2019-07-12]]; Polyraptor enters the battlefield ; Marauding Raptor’s “another creature enters” trigger goes on the stack and eventually resolves, dealing 2 damage to Polyraptor and granting Marauding Raptor +2/+0 (because a Dinosaur was dealt damage this way) ; Polyraptor’s Enrage then triggers from having been dealt damage and will create a token copy when it resolves; that token entering re-triggers the Raptor’s ability and the loop continues. Damage is marked on creatures as appropriate , and triggered abilities created by those events are handled as triggered abilities are placed on the stack . The mechanical result is an unbounded sequence of triggered abilities producing more Polyraptor tokens until an external effect or rule stops it.Feedback