Pollenbright Wings attached to a creature with power five or greater that can attack this turn and that cannot be blocked by an opponent.
Steps
Deal combat damage to an opponent using the creature that has Pollenbright Wings attached.
Pollenbright Wings triggers, creating at least five 1/1 Saproling creature tokens.
Move to your postcombat main phase.
Activate Phyrexian Altar five times by sacrificing five Saprolings, adding ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) .
Activate Aggravated Assault by paying ({3} magic symbol) ({R} magic symbol) ({R} magic symbol) , causing you to untap all creatures you control and to get an additional combat and main phase after this one.
Repeat.
If the creature has power six or greater, this combo nets infinite creature tokens.