Prerequisites
- All permanents on the battlefield
- Light of Promise attached to Walking Ballista
- Bruse Tarl does not have summoning sickness
- Walking Ballista has at least two +1/+1 counters on it
Steps
- Declare Bruse Tarl as an attacker
- Bruse Tarl triggers, giving Walking Ballista lifelink and double strike until end of turn
- Activate Walking Ballista's second ability by removing a +1/+1 counter from it, dealing 1 damage to any target and causing you to gain 1 life
- Walking Ballista triggers, putting a +1/+1 counter on itself
- Repeat from step 3
Results
Required Cards 3
Bruse Tarl, Boorish Herder
Legendary Creature — Human Ally
Walking Ballista
Artifact Creature — Construct
Light of Promise
Enchantment — Aura