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

The Watcher in the Water

Wylie Duke, Atiin Hero

Heart of Kiran

Altar of Dementia

Psychic Paper

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 loop turns a clever piece of equipment into an engine of continuous value by letting Wylie Duke, Atiin Hero repeatedly crew Heart of Kiran to tap itself on demand during an opponent's turn. Because Wylie Duke's tapping draws you a card, it immediately triggers The Watcher in the Water to churn out a fresh 1/1 Tentacle creature token. You then feed that token straight to Altar of Dementia, sending cards to the graveyard while satisfying The Watcher in the Water's death trigger to safely untap Wylie Duke and keep the cycle spinning. Meanwhile, Psychic Paper quietly holds down the table by granting ward and unblockability (though the true magic here is simply fueling your activations), allowing you to draw your entire deck, gain massive life, and mill out any opponent in your path.