The Watcher in the Water + Wylie Duke, Atiin Hero + Heart of Kiran + Umbral Collar Zealot + Xenograft

The Watcher in the Water

Wylie Duke, Atiin Hero

Heart of Kiran

Umbral Collar Zealot

Xenograft

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 Umbral Collar Zealot 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 Umbral Collar Zealot ability
8. Repeat.

This loop creates a self-sustaining engine by turning your entire board into fuel for Wylie Duke, Atiin Hero's thirst for taps, which is conveniently paid for by crewing Heart of Kiran without needing actual power. Thanks to Xenograft declaring Krakens as the universal creature type, The Watcher in the Water treats every creature you control as a Kraken—meaning when Umbral Collar Zealot sacrifices the Tentacle token that The Watcher spawned from your drawn card, that same death triggers The Watcher to untap Wylie Duke, Atiin Hero right back. You can repeat this dance on your opponent's turn as many times as you like, churning through your deck while stacking stun counters on whatever threatens your victory.