B/U Zombies springs to mind with Call the Bloodline, Haunted Dead, and Compelling Deterrence
Alongside Exhume in the Legacy reanimation deck, this card is used to put creature cards like Griselbrand, Archon of Cruelty, and Serra's Emissary into play as early as turn one
You dont have to cast it if you dont want to, and you dont lose it if you choose not to cast it for a turn or two
While not Mega Evolved, it still manages to look menacing in the card art
This is another category that plays up white's "answers that have answers" feel
This red enchantment is just good as a helpful piece of burn-based interaction in an energy deck in EDH, and it also burns out the table once you get one of the many infinite energy combos the top-tier of energy cards can shuffle together to generate