Chalk Outline + Golbez, Crystal Collector + Cloakwood Swarmkeeper + 1 more
Infinite ETB, Infinite creature tokens, Infinite Clue tokens, Infinite +1/+1 counters on a creature
Put a +1/+1 counter on a creature you control.
Moss-Pit Skeleton triggers, putting it from your graveyard onto the top of your library.
Chalk Outline triggers, creating a 2/2 Detective creature token and a Clue token.
When the Clue enters the battlefield, Golbez and Cloakwood Swarmkeeper trigger.
Resolve the Golbez trigger, putting Moss-Pit Skeleton from the top of your library into your graveyard.
Resolve the Cloakwood Swarmkeeper trigger, putting a +1/+1 counter on it.
Repeat from step 2.
Component Cards
How It Works
Put a +1/+1 counter on a creature you control.
Moss-Pit Skeleton triggers, putting it from your graveyard onto the top of your library.
Chalk Outline triggers, creating a 2/2 Detective creature token and a Clue token.
When the Clue enters the battlefield, Golbez and Cloakwood Swarmkeeper trigger.
Resolve the Golbez trigger, putting Moss-Pit Skeleton from the top of your library into your graveyard.
Resolve the Cloakwood Swarmkeeper trigger, putting a +1/+1 counter on it.
Repeat from step 2.