Prowling Geistcatcher Combos
Prowling Geistcatcher + Kiki-Jiki, Mirror Breaker + Ashnod's Altar
Prowling Geistcatcher + Saffi Eriksdotter + Viscera Seer
Prowling Geistcatcher + Saffi Eriksdotter + Phyrexian Altar
Prowling Geistcatcher + Saffi Eriksdotter + Goblin Bombardment
Prowling Geistcatcher + Saffi Eriksdotter + Carrion Feeder
Prowling Geistcatcher + Saffi Eriksdotter + Blasting Station
Prowling Geistcatcher + Saffi Eriksdotter + Ashnod's Altar
Prowling Geistcatcher + Saffi Eriksdotter + Altar of Dementia
Prowling Geistcatcher + Restoration Angel + Phyrexian Altar
Prowling Geistcatcher + Restoration Angel + Ashnod's Altar
Prowling Geistcatcher + Pawn of Ulamog + Shambling Ghast
Combo result
Infinite creature tokens. Infinite colorless mana. Infinite ETB. Infinite LTB. Infinite death triggers. Infinite sacrifice triggers. Infinite storm count. Infinite mill. Infinite self-mill.
Prerequisites
All permanents on the battlefield. You control at least one additional nontoken creature.