Ratadrabik of Urborg + Sarkhan, the Dragonspeaker + Carrion Feeder

Prerequisites

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Steps

1. 1Activate Sarkhan's first loyalty ability by putting a loyalty counter on it, causing it to become a legendary 4/4 Dragon creature with flying, indestructible and haste.
2. 2Activate Carrion Feeder by sacrificing Sarkhan.
3. 3When Sarkhan dies, Ratadrabik triggers, creating a token copy of Sarkhan that isn't legendary.
4. 4Resolve the Carrion Feeder ability.
5. 5Repeat using the Sarkhan token.

Effects

• Infinite +1/+1 counters on a creature
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite death triggers