Basking Broodscale, Cathars' Crusade, and Yuna, Grand Summoner

Prerequisites

• Basking Broodscale in hand
• Cathars' Crusade on the battlefield
• Yuna, Grand Summoner on the battlefield
• available

Steps

1. Cast Basking Broodscale by paying
2. When Basking Broodscale enters, Cathars' Crusade triggers, putting a +1/+1 counter on Basking Broodscale
3. Basking Broodscale triggers, creating a 0/1 Eldrazi Spawn creature token
4. When the Eldrazi Spawn enters, Cathars' Crusade triggers, putting a +1/+1 counter on the Eldrazi Spawn
5. Activate the Eldrazi Spawn by sacrificing it, adding
6. When the Eldrazi Spawn dies, Yuna triggers, putting a +1/+1 counter on Basking Broodscale
7. Repeat from step 3
8. Activate Basking Broodscale's adapt ability by paying , putting a +1/+1 counter on it
9. Basking Broodscale triggers, creating a 0/1 Eldrazi Spawn creature token
10. When the Eldrazi Spawn enters the battlefield, Cathars' Crusade triggers, putting a +1/+1 counter on each creature you control
11. Repeat from step 2

Results

• Infinite +1/+1 counters on creatures you control
• Infinite colorless mana
• Infinite creature ETB
• Infinite creature LTB
• Infinite creature sacrifice triggers
• Infinite creature tokens
• Infinite death triggers