Mana Summoning

Search your library for a creature card with
converted mana cost X or less, reveal it, then
shuffle it into your library. Create a token that's
a copy of that creature. It has haste. Exile it at
the end of this turn.
Snatch {x}{x}{u}{u} (You may cast this spell for its
snatch cost. If you do, change its text by replacing all
instances of "your" with "target opponent's." If there
are multiple instances of this change, they must all
have the same target.)