Combo result
Infinite damage to any target. Prerequisites
All permanents on the battlefield. Spark Double on the battlefield as a copy of Phyrexian Vindicator. You have a way to target Phyrexian Vindicator with damage.
Vigor + Walking Ballista + Gratuitous Violence
Combo result
Infinite damage. Infinite +1/+1 counters. Prerequisites
All permanents on the battlefield. Walking Ballista has at least two +1/+1 counters on it
Ziatora, the Incinerator + Malignus + Gratuitous Violence
Combo result
Target opponent loses the game. Near-infinite damage to target opponent. Prerequisites