Poetic Ingenuity and Aggravated Assault on the battlefield.
You control at least five Dinosaurs that do not have summoning sickness.
An opponent cannot block and kill creatures you control.
Steps
Declare at least five Dinosaurs as attackers.
Poetic Ingenuity's first ability triggers, creating at least five Treasure artifact tokens.
Move to your postcombat main phase.
Activate five Treasure tokens by tapping and sacrificing them, 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 you control six or more DInosaurs, this combo nets Treasure tokens and colored mana.