The Tenth Doctor + Mana Echoes + Festering March + The Lost and the Damned

Prerequisites

• You control at least six creatures that share a creature type with the tokens generated by The Lost and the Damned

Steps

1. 1Activate The Tenth Doctor by paying , removing all time counters from Festering March.
2. 2Festering March triggers, causing you to cast it from exile without paying its mana cost.
3. 3The Lost and the Damned triggers, creating a creature token.
4. 4When the creature token enters, Mana Echoes triggers, adding for each creature you control that shares a creature type with the token.
5. 5Resolve Festering March.
6. 6Repeat.

Effects

• Infinite colorless mana
• Infinite creature ETB
• Infinite creature tokens
• Infinite magecraft triggers
• Reduce the toughness of creatures opponents control to 0