Celes, Rune Knight + Phyrexian Altar + Forsaken Miner + Walking Ballista

Celes, Rune Knight

Phyrexian Altar

Forsaken Miner

Walking Ballista

How it works

1. Activate Phyrexian Altar by sacrificing Forsaken Miner, adding .
2. Activate Walking Ballista by removing a +1/+1 counter from it, targeting an opponent or a permanent an opponent controls.
3. When you commit that crime, Forsaken Miner triggers, causing you to pay to return Forsaken Miner from your graveyard to the battlefield.
4. When Forsaken Miner enters the battlefield, Celes's second ability triggers, putting a +1/+1 counter on each creature you control.
5. Resolve the Walking Ballista ability from step 2.
6. Repeat.