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, Sarinth Steelseeker and Cloakwood Swarmkeeper trigger.
Resolve the Sarinth Steelseeker 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.

Infinite ETB

Infinite creature tokens

Infinite Clue tokens

Infinite +1/+1 counters on a creature

Chalk Outline

Sarinth Steelseeker

Cloakwood Swarmkeeper

Moss-Pit Skeleton

Create an artifact token.
When the artifact token enters the battlefield, Wildwood Mentor and Sarinth Steelseeker trigger.
Resolve the Wildwood Mentor trigger, putting a +1/+1 counter on it.
Moss-Pit Skeleton triggers, putting it from your graveyard onto the top of your library.
Resolve the Sarinth Steelseeker trigger, revealing Moss-Pit Skeleton from the top of your library and putting it into your graveyard.
Unshakable Tail triggers, creating a Clue token.
Repeat from step 2.

Unshakable Tail

Wildwood Mentor

Cast Arcbound Reclaimer by paying {4}.
When Arcbound Reclaimer enters the battlefield, Sarinth Steelseeker triggers.
Holding priority, activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting an artifact creature card from your graveyard onto the top of your library.
Thran Vigil triggers, putting a +1/+1 counter on Arcbound Reclaimer.
Resolve the Sarinth Steelseeker ability, putting the artifact creature card from the top of your library into your graveyard.
Unshakable Tail triggers, creating a Clue token.
When the Clue enters the battlefield, Sarinth Steelseeker triggers.
Repeat from step 3.

Thran Vigil

Arcbound Reclaimer

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.
Kheru Goldkeeper triggers, creating a Treasure token
When the Treasure enters the battlefield, Sarinth Steelseeker and Cloakwood Swarmkeeper trigger.
Resolve the Sarinth Steelseeker 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.

Infinite colored mana

Infinite Treasure tokens

Kheru Goldkeeper

Cast Arcbound Reclaimer by paying {4}.
When Arcbound Reclaimer enters the battlefield, Yotian Dissident and Sarinth Steelseeker trigger.
Resolve the Yotian Dissident trigger, putting a +1/+1 counter on Arcbound Reclaimer.
Holding priority, activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting an artifact creature card from your graveyard onto the top of your library.
Resolve the Sarinth Steelseeker ability, putting the artifact creature card from the top of your library into your graveyard.
Unshakable Tail triggers, creating a Clue token.
When the Clue enters the battlefield, Yotian Dissident and Sarinth Steelseeker trigger.
Repeat from step 3.

Yotian Dissident

Cast Rosie Cotton by paying {2}{W}.
When Rosie Cotton enters the battlefield, its first ability triggers, creating a Food token.
When the token enters the battlefield, Rosie Cotton's second ability and Sarinth Steelseeker trigger.
Resolve the Rosie Cotton trigger, putting a +1/+1 counter on Arcbound Reclaimer.
Holding priority, activate Arcbound Reclaimer by removing a +1/+1 counter from it, putting an artifact creature card from your graveyard onto the top of your library.
Resolve the Sarinth Steelseeker ability, putting the artifact creature card from the top of your library into your graveyard.
Unshakable Tail triggers, creating a Clue token.
Repeat from step 3.

Combos with "Sarinth Steelseeker"