Jumbo Cactuar, and Chandra's Ignition

Prerequisites

• Jumbo Cactuar on the battlefield
• Chandra's Ignition in hand
• available

Steps

1. Declare Jumbo Cactuar as an attacker, triggering its ability, giving it +9999/+0 until end of turn
2. Cast Chandra's Ignition by paying , causing Jumbo Cactuar to deal 10,000 damage to each opponent and each other creature

Results

• Near-infinite damage