mtg cards like conjurer's closet [Wizards Play Network 2021] you may exile target creature you control Biblioplex Assistant | Conjurer's Closet

Jet Medallion

This effect can't reduce the mana in that cost to less than one mana

It drains an opponent for 2 life and gains you 2 life per copy, which stacks up quickly

Unlike Temporary Lockdown, Ultima is not vulnerable to Into the Flood Maw

Think about how much time would be taken up by searching your deck for every single Goblin, showing it to your opponent, and shuffling the deck without a Judge standing right next to you because youve just picked up your deck and took out one billion cards and then put them on top after shuffling

These are fairly different mechanics that share the common theme of making summoning sick creatures do more than blocking by empowering a different permanent