Activate Dihada's second loyalty ability by removing three loyalty counters from it, causing you to mill four cards and create four Treasure tokens.
Activate Krark-Clan Ironworks twice by sacrificing three Treasure tokens, adding six ({C} magic symbol) .
Activate Luxior's first equip ability by paying ({1} magic symbol) , attaching it to Dihada, causing Dihada to become a creature that is no longer a planeswalker.