Drowned Rusalka + Relic of Legends + The Watcher in the Water

U identity

Commander legal

The 3 combo pieces

What must be in place

You control at least one Tentacle.
It is not your turn.
The Watcher has zero stun counters on it.

How to execute it

  1. During an opponent's turn, activate Relic of Legends' second ability by tapping The Watcher, adding {U}.
  2. Activate Drowned Rusalka by paying {U} and sacrificing a Tentacle.
  3. When the Tentacle dies, The Watcher's second ability triggers, untapping itself.
  4. Resolve the Drowned Rusalka trigger, causing you to rummage.
  5. The Watcher's first ability triggers, creating a 1/1 Tentacle creature token.
  6. Repeat.

What the combo produces