The first choice for building a Commander deck is generally the commander, this is where your color identity comes from, and you add both partner commanders together to get the color identity
The trigger event doesn't have to specifically refer to "creatures." In these cases, the trigger event may also refer to something being "put into a graveyard from the battlefield." For example, an ability that triggers "whenever an artifact is put into a graveyard from the battlefield" would trigger twice if an artifact creature dies while Teysa Karlov is on the battlefield
His swashbuckling nature might make you consider treasure as a way to take advantage of his abilities, but I propose a more interesting choice: Goblins
This card will give you sacrificing benefits, ramp, removal, ping opponents for 2 damage and draw you a card
The summoner, Yuna, and her guardians - including Wakka - depart from Besaid soon after she emerges from the temple
Chikako Nakanos concept artwork shows the terrifying first phase of his fight, the final battle of the game and a scourge to many players