Shaun, Father of Synths | Godo, Bandit Warlord | Archelos, Lagoon Mystic

(and one other card)

Haste Enablers

Declare
Godo as an attacker, triggering its second ability and
Shaun's first ability.
Resolve the
Shaun trigger, creating an attacking copy of
Godo that is a nonlegendary Synth artifact in addition to its other types and that enters untapped due to
Archelos.
When the
Godo token enters, its own first ability triggers, allowing you to search your library for an Equipment card and put it onto the battlefield.
Resolve the
Godo trigger from step 1, untapping it and all Samurai you control and causing you to get an additional combat phase after this one.
Repeat each combat phase, each time attacking with a new
Godo that has not attacked yet this turn in step 1.