Wirewood Symbiote + Mirror Entity + Faeburrow Elder

Wirewood Symbiote

Mirror Entity

Faeburrow Elder

How it works

1. Activate Faeburrow Elder by tapping it, adding at least .
2. Cast Wirewood Symbiote by paying .
3. Activate Mirror Entity by paying 1, giving creatures you control all creature types and base power and toughness 1/1 until end of turn.
4. Activate Wirewood Symbiote by returning it from the battlefield to your hand, untapping Faeburrow Elder.
5. Repeat.

This loop relies on the brilliant synergy between Wirewood Symbiote's ability to bounce itself to untap a creature and Faeburrow Elder's ability to tap for enough mana to recast the Elf while netting a profit. Because Mirror Entity grants every creature type to everything you control, the Symbiote can target the Elder as an "Elf" to untap it, while also fueling the Elder's color-scaling mana production. By repeating this bouncing and recasting dance, you generate infinite mana of any color among your permanents, infinitely large creatures through Mirror Entity's activation, and an unbounded storm count.