mtg chancla card relampago (It cant be the target of spells or abilities.) The Chancla : r/custommagic

Open the metal briefcase, and play

If you need a bit more of a push to maximize your convoke triggers, you can play the Invasion of Segovia, which, when it flips to Caetus, Sea Tyrant of Segovia (a very impressive name for a 3/3 creature), it gives all your noncreature spells convoke, letting you bust out some combat tricks when you're normally tapped out

Nasty card draw from decks that have the right fodder to sacrifice to draw a ton of cards or mill some stuff in sacrifice matters or mill decks which, as mentioned above, are very strong

Another popular card that is a little more versatile and sees a bit more pay in formats like Commander is Quicksilver Amulet and its younger brother, Thran Temporal Gateway

Flusterstorm is a great counterspell against Storm decks, Hornet Queen has been an excellent reanimation and ramp target, and Scavenging Ooze is an efficient creature that hates on the graveyard while giving you serious value