Echoing Echo [Unknown Event] Desert you may exile a colorless

you may exile a colorless card with mana value 7 or greater from your hand

then you may return a creature card with mana value 2 or less from your graveyard to the battlefield

Set: Modern Horizons 3 Type: Legendary Creature — Phyrexian Horror Minion Rarity: Rare Cost: {4}{B/P}{B/P}{B/P} ({B/P} can be paid with either {B} or 2 life

(Leeches is a 1WW sorcery from Homelands that reads

When Subtlety enters the battlefield

Echoing Echo [Unknown Event] Desert you may exile a colorlessSet: Unknown Event Type: Sorcery Rarity: Common Cost: {W} Target creature and all creatures that share a name with that creature gain echo 3 until the end of your next turn. (At the beginning of the upkeep of each of those creature's controllers, if that creature came under its owner's control since the beginning of their last upkeep, they sacrifice it unless they pay its echo cost.