Agatha's Soul Cauldron + Walking Ballista + Sephiroth, Planet's Heir + Card that Gives a Creature Deathtouch

Prerequisites

• Sephiroth, Planet's Heir has a +1/+1 counter on it.
• Card that Gives a Creature Deathtouch

Steps

1. 1If needed, give Sephiroth deathtouch.
2. 2Activate Sephiroth using Walking Ballista's ability by removing a +1/+1 counter from it, dealing 1 damage to a creature an opponent controls and destroying it due to Sephiroth's deathtouch.
3. 3When the creature dies, Sephiroth triggers, putting a +1/+1 counter on it.
4. 4Repeat from step 2.

Effects

• Destroy all creatures opponents control
• Destroy each creature that enters the battlefield under an opponent's control
• Lock