Infinite combat phasesInfinite creature tokens with hasteInfinite creature ETBInfinite mana creatures you control can produceInfinite untap of creatures you control
How it works
Cast Aurelia by paying 2.
When Aurelia enters the battlefield, Cadric triggers, causing you to pay 1 to create a token copy of Aurelia.
Move to your combat phase.
Declare Ghired and an Aurelia that has not attacked this turn as attackers, triggering their abilities.
Resolve the Ghired trigger, creating a token copy of the Aurelia token that enters the battlefield tapped and attacking.
Resolve the Aurelia trigger, causing you to untap all creatures you control, and to get an additional combat phase after this one.