yu gi oh exodia deck The Forbidden One Yu-Gi-Oh! The Unstoppable Exodia Incarnate

For two mana, you get a 1/2 that lets you draw a card and lose one life if an opponent discarded a card that turn

Another example would be something like Hypnotic SirenHypnotic Siren, which doesn't do much when fetched, but can be used to take an opponent's best creature on the board

This is just a nice rounded little card that does a lot of work at all stages of the game

At its best, game design inspires worldbuilding, and worldbuilding inspires game design, in turn, in a virtuous circle

Furthermore, it can be also appropriate to counter the Initiative creatures themselves while attacking the mana development of the deck

Collect your favorites to power up your deck, or simply to build up a collection