Smaug, Wicked Worm | Deadeye Navigator | Archelos, Lagoon Mystic

Cards

All permanents on the battlefield (
Deadeye Navigator is paired with
Smaug and
Archelos untapped).

Activate
Deadeye Navigator by paying ({1} magic symbol) ({U} magic symbol) , blinking
Smaug.
When
Smaug enters, its first ability and
Deadeye Navigator's soulbond ability trigger.
Resolve the
Deadeye Navigator trigger, repairing it and
Smaug.
Resolve the
Smaug trigger, creating a number of untapped Treasure tokens due to
Archelos.
Activate two Treasures by tapping and sacrificing them, adding ({1} magic symbol) ({U} magic symbol) .
Repeat.

This combo has been estimated to be Exhibition (Bracket 1+).