Saheeli, Radiant Creator | Guide of Souls | Aurelia, the Warleader

(and one other card)

At the beginning of your combat phase,
Saheeli triggers, causing you to pay ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) to create a token copy of
Aurelia that is a 5/5 artifact creature.
Put the oldest
Aurelia into your graveyard due to the legend rule.
When the
Aurelia token enters the battlefield,
Gonti's Aether Heart and
Guide of Souls trigger, causing you to get ({E} magic symbol) ({E} magic symbol) ({E} magic symbol) and gain 1 life.
Declare the
Aurelia token as an attacker. The token triggers, causing you to untap all creatures you control and to get an additional combat phase after this one.
Repeat each combat phase.