This means you can target your biggest threat at the table but take them out by swinging at the player with the worst board state
In the Modern format, Ragavan, Nimble Pilferer is the benchmark for efficiency
Andthat is basically what a Set Booster is
No matter - the next year they were tried again in Legends with the cards Dwarven Song, Sylvan Paradise, Sea Kings' Blessing, Heaven's Gate, and Touch of Darkness
Fortunately, you also kill your opponents hand a little and are still able to KO that active Mewtwo anyway
You can put it all together with a mana cost reducer (Hazoret's Monument, Goblin Warchief), a sacrifice outlet (Skirk Prospector is the best one), and some kind of mana engine (Birgi, God of Storytelling, Runaway Steam-Kin)