The Tenth Doctor + Mana Echoes + Cyclical Evolution + Sedgemoor Witch
The Tenth Doctor
Mana Echoes
Cyclical Evolution
Sedgemoor Witch
Infinite creature ETBInfinite colorless manaInfinite creature tokensInfinite magecraft triggersInfinitely large creatures you control until end of turn
How it works
Activate The Tenth Doctor by paying 7, removing all time counters from Cyclical Evolution.
Cyclical Evolution triggers, causing you to cast it from exile without paying its mana cost.
Sedgemoor Witch triggers, creating a creature token.
When the creature token enters, Mana Echoes triggers, adding C for each creature you control that shares a creature type with the token.