The Ultra Rare Earthen Vessel stands out as both a competitive trainer card and a collectors item
With the honorable mentions out of the way, let's start with number ten
Karumonix, the Rat King Karumonix, the Rat King turns its rat army into an infectious disease that can spread to your opponents if they arent careful of the toxic 1 ability
This event had 41 players in it according to the MTGO website
Breeches, Brazen Plunderer Breeches, Brazen Plunderer makes for solid pirates commander when partnered with Malcolm, Keen-Eyed Navigator, particularly if youre on a budget (few pirate staples are worth much)
When it resolves, all players exile all creatures from their graveyards, sacrificing all the creatures they have in play, and then putting all creatures exiled from their graveyard and putting them all back into play