The Tenth Doctor + Mana Echoes + Reality Strobe + Tellah, Great Sage
The Tenth Doctor
Mana Echoes
Reality Strobe
Tellah, Great Sage
Infinite creature ETBInfinite colorless manaInfinite creature tokensInfinite magecraft triggersMass Land DenialReturn any number of permanents to their owner's hand
How it works
Activate The Tenth Doctor by paying 7, removing all time counters from Reality Strobe.
Reality Strobe triggers, causing you to cast it from exile without paying its mana cost.
Tellah 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.