Destroy each creature that enters the battlefield under an opponent's control, Destroy all creatures opponents control, Lock
Give Sengir deathtouch, if needed.
Activate Sengir using Triskelion's ability by removing a +1/+1 counter from it, dealing 1 damage to any creature an opponent controls, and killing it due to Sengir's deathtouch.
When the creature dies, Sengir's first ability triggers, putting two +1/+1 counters on it.
Repeat from step 2 as desired.
Component Cards
How It Works
Give Sengir deathtouch, if needed.
Activate Sengir using Triskelion's ability by removing a +1/+1 counter from it, dealing 1 damage to any creature an opponent controls, and killing it due to Sengir's deathtouch.
When the creature dies, Sengir's first ability triggers, putting two +1/+1 counters on it.
Repeat from step 2 as desired.