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Idris, Soul of the TARDIS + Grim Monolith + Training Grounds

U manaR mana
Idris, Soul of the TARDIS
Idris, Soul of the TARDIS
Grim Monolith
Grim Monolith
Training Grounds
Training Grounds
Infinite colorless mana

How it works

  1. Activate Idris using Grim Monolith's first ability by tapping it, adding CCC.
  2. Activate Idris using Grim Monolith's second ability by paying 2, untapping it.
  3. Repeat.
Legal in:CommanderLegacyOathbreakerVintage
5 decks$479.07