Jumbo Cactuar, and Peema Aether-Seer

Prerequisites

• Jumbo Cactuar on the battlefield
• Peema Aether-Seer in hand
• undefined available

Steps

1. Declare Jumbo Cactuar as an attacker, triggering its ability, giving it +9999/+0 until end of turn
2. Cast Peema Aether-Seer by paying
3. When Peema Aether-Seer enters the battlefield, it triggers, causing you to get 10,000

Results

• Near-infinite energy counters