The Watcher in the Water + Wylie Duke, Atiin Hero + Heart of Kiran + Altar of Dementia + Maskwood Nexus

The Watcher in the Water

Wylie Duke, Atiin Hero

Heart of Kiran

Altar of Dementia

Maskwood Nexus

How it works

1. During an opponent's turn, activate Heart of Kiran by tapping Wylie Duke.
2. Wylie Duke triggers, causing you to draw a card and gain 1 life.
3. The Watcher's first ability triggers, creating a 1/1 Tentacle creature token.
4. Resolve the Heart of Kiran ability, causing it to become a creature until end of turn.
5. Activate Altar of Dementia by sacrificing the Tentacle.
6. When the Tentacle dies, The Watcher's second ability triggers, untapping Wylie Duke and putting a stun counter on up to one permanent.
7. Resolve the Altar of Dementia ability
8. Repeat.

This intricate loop transforms a simple crew cost into a self-sustaining engine by turning every piece into a multi-purpose cog. Maskwood Nexus is the crucial glue here, bestowing all creature types onto your board so that The Watcher in the Water recognizes your sacrifices and untaps Wylie Duke, Atiin Hero. As Wylie Duke taps to crew Heart of Kiran, his triggered ability draws you a card during your opponent's turn, which in turn forces The Watcher in the Water to churn out a Tentacle token. You then feed that token to Altar of Dementia to mill away cards, sending the Tentacle to the graveyard so its death trigger can untap Wylie Duke and ready the cycle to begin anew.