Yedora, Grave Gardener, Primordial Mist, and Walking Ballista

Prerequisites

• Yedora, Grave Gardener on the battlefield
• Primordial Mist on the battlefield
• Walking Ballista in hand

Steps

1. Cast Walking Ballista for = 0
2. Walking Ballista dies to having zero toughness
3. Yedora triggers, returning it to the battlefield face-down as a Forest land
4. Tap that Forest for
5. Activate Primordial Mist by exiling the face-down Walking Ballista, and allowing you to cast it this turn
6. Repeat
7. Once you have infinite , you may cast Walking Ballista using an arbitrarily large amount of mana, and then use its second ability to deal an arbitrarily large amount of damage to any target(s)

Results

• Infinite +1/+1 counters on Walking Ballista
• Infinite damage
• Infinite death triggers
• Infinite ETB
• Infinite green mana
• Infinite landfall triggers
• Infinite LTB
• Infinite storm count