Festering March + Mana Echoes + Sedgemoor Witch + The Tenth Doctor

Mana needed: {7}

UBR identity

Commander legal

The 4 combo pieces

What must be in place

You control at least six creatures that share a creature type with the tokens generated by Sedgemoor Witch

How to execute it

  1. Activate The Tenth Doctor by paying {7}, removing all time counters from Festering March.
  2. Festering March triggers, causing you to cast it from exile without paying its mana cost.
  3. Sedgemoor Witch triggers, creating a creature token.
  4. When the creature token enters, Mana Echoes triggers, adding {C} for each creature you control that shares a creature type with the token.
  5. Resolve Festering March.
  6. Repeat.

What the combo produces