Mister Fantastic + Sunken Palace + Seeker of Skybreak

Prerequisites

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Steps

1. 1Activate Sunken Palace's second ability by paying , tapping it and exiling seven cards from your graveyard, adding .
2. 2Put any triggered ability on the stack.
3. 3Holding priority, activate Mister Fantastic by paying and tapping it, ensuring to use the mana from Sunken Palace, targeting a triggered ability.
4. 4Sunken Palace triggers. Holding priority, activate Seeker of Skybreak by tapping it, untapping Mister Fantastic.
5. 5Activate Mister Fantastic by paying and tapping it, copying Sunken Palace's trigger twice.
6. 6Resolve the first Sunken Palace trigger, copying Mister Fantastic's ability, targeting a Sunken Palace trigger.
7. 7Resolve the Mister Fantastic ability, copying Sunken Palace's trigger twice.
8. 8Repeat from step 6.

Effects

• Infinite copies of triggered abilities you control on the stack