Colfenor, the Last Yew Combos
Colfenor, the Last Yew + Myr Retriever + Ashnod's Altar
Colfenor, the Last Yew + Tempered Steel + Memnite
Colfenor, the Last Yew + Sifter of Skulls + Walking Ballista
Colfenor, the Last Yew + Sifter of Skulls + Ugin's Conjurant
Colfenor, the Last Yew + Sifter of Skulls + Hangarback Walker
Colfenor, the Last Yew + Sifter of Skulls + Endless One
Colfenor, the Last Yew + Saffi Eriksdotter + Pitiless Plunderer
Colfenor, the Last Yew + Phyrexian Altar + Glorious Anthem
Colfenor, the Last Yew + Phyrexian Altar + Doomed Dissenter
Colfenor, the Last Yew + Phyrexian Altar + Brindle Shoat
Colfenor, the Last Yew + Pawn of Ulamog + Walking Ballista
Colfenor, the Last Yew + Pawn of Ulamog + Ugin's Conjurant
Colfenor, the Last Yew + Pawn of Ulamog + Hangarback Walker
Colfenor, the Last Yew + Pawn of Ulamog + Endless One
Colfenor, the Last Yew + Ashnod's Altar + Endless One
Colfenor, the Last Yew + Hangarback Walker + Ashnod's Altar
Combo result
Infinite ETB. Infinite LTB. Infinite colorless mana. Return any number of creatures from your graveyard to your hand. Infinite creature tokens with flying. Infinite storm count. Infinite sacrifice triggers. Infinite death triggers.
Prerequisites
All permanents on the battlefield. Hangarback Walker has at least one +1/+1 counter on it.