Liliana, Untouched by Death + Phyrexian Altar

Prerequisites

• You control a nontoken Zombie or a nontoken creature with changeling with mana value one or less.
• Liliana has at least three loyalty counters on it.

Steps

1. 1Activate Liliana's third loyalty ability by removing three loyalty counters from it, allowing you to cast Zombie spells from your graveyard this turn.
2. 2Activate Phyrexian Altar by sacrificing a nontoken Zombie or nontoken creature with changeling with mana value one or less, adding one mana of any color.
3. 3Cast the Zombie from your graveyard by paying its mana cost.
4. 4Repeat from step 2.

Effects

• Infinite death triggers
• Infinite ETB
• Infinite LTB
• Infinite sacrifice triggers
• Infinite storm count