Shrieking Drake + Phyrexian Altar + Selvala, Eager Trailblazer

Shrieking Drake

Phyrexian Altar

Selvala, Eager Trailblazer

How it works

1. Cast Shrieking Drake by paying .
2. Selvala triggers, creating a creature token.
3. When Shrieking Drake enters the battlefield, it triggers, returning itself from the battlefield to your hand.
4. Activate Phyrexian Altar by sacrificing the creature token, adding .
5. Repeat.

This delightful loop turns the lowly Shrieking Drake into a self-sustaining engine by exploiting its mandatory self-bounce: every time it enters the battlefield, it must return itself to your hand for just a single blue mana, which you then easily fund by feeding Phyrexian Altar the fodder it desperately craves. That sacrificial altar-fodder isn't hard to come by thanks to Selvala, Eager Trailblazer, whose triggered ability quietly churns out a fresh Mercenary token every single time you cast the Drake. Together, Selvala's token generation and the Altar's mana conversion create a closed circuit of casting, bouncing, and sacrificing that yields an endless stream of triggers for whatever storm or death-based payoff you desire.