Fain, the Broker + Thornbite Staff + Crystalline Crawler + Reassembling Skeleton

Fain, the Broker

Thornbite Staff

Crystalline Crawler

Reassembling Skeleton

How it works

1. Activate Fain's first ability by tapping it and sacrificing Reassembling Skeleton.
2. Reassembling Skeleton dies, triggering Fain, untapping Fain.
3. Resolve the Fain ability from step 1, putting two +1/+1 counters on Crystalline Crawler.
4. Activate Crystalline Crawler's first ability twice by removing two counters from it, adding .
5. Activate Reassembling Skeleton by paying 1, returning it from your graveyard to the battlefield tapped.
6. Repeat.