Likely its major duty in those decks will be removing small blockers, utility creature and mana dork control, but the ceiling can be fairly high
Falling into the Ruby ink type, Aladdin - Heroic Outlaw has a high summoning cost of 7 ink, but, like some other cards, has the "Shift" trait, so it can be played on top of an already-in-play Aladdin card for only 5 ink
Final Fantasy XIV This deck was tricky to land on, but by being white-blue-black, we had access to the colors we needed for the characters we wanted to include, but also be a noncreature matters theme, representing spell casting and ability usage you perform as the player while playing the Final Fantasy XIV game
Use the MTG deckloader object to paste in a URL to any deck builder site including Archidekt, Deckstats, Frogtown.me, MTGGoldfish, Moxfield, or Scryfall
A popular choice in that regard is a red creature card called Brash Taunter, an indestructible Goblin that when dealt damage, does that much damage to target opponent
Fblthp caught totally lost on the streets of Ravnica