Illumination

Counter target artifact or enchantment spell. Its controller gains life equal to its converted mana cost.

Prismatic Lace

Target permanent becomes the color or colors of your choice. (This effect lasts indefinitely.)

Worldly Tutor

Search your library for a creature card and reveal that card. Shuffle your library, then put the card on top of it.

Mystical Tutor

Search your library for an instant or sorcery card and reveal that card. Shuffle your library, then put the card on top of it.

Catacomb Dragon

Flying
Whenever Catacomb Dragon becomes blocked by a nonartifact, non-Dragon creature, that creature gets -X/-0 until end of turn, where X is half the creature’s power, rounded down.