This is the main game
You can mutate it onto cheap evasive creatures to ensure it keeps swinging, while multiple mutations compounds the advantage
Angrath, Captain of Chaos Ashen Reaper Avengers: Under Siege Bladewing, Deathless Tyrant Body Dropper Brawl-Bash Ogre Carnage Interpreter Cindering Cutthroat Coalstoke Gearhulk Drach'Nyen Elite Headhunter Flamewar, Streetwise Operative Frenzied Gorespawn Goblin Plate Mail Greven, Predator Captain Grusilda, Monster Masher Incriminating Impetus Junkyard Genius Kivni, Orb Weaver Labyrinth Raptor Madame Hydra Mauhr, Uruk-hai Captain Mishra, Lost to Phyrexia Monoxa, Midway Manager Ravager's Mace Rivaz of the Claw Riveteers Provocateur Rowan, Scion of War Rune-Brand Juggler Sawblade Skinripper Scarlet Spider, Kaine Silvar, Devourer of the Free Sonorous Howlbonder Stormfist Crusader The Beast, Deathless Prince The Bloodsky Massacre The Dalek Emperor The Infamous Cruelclaw The Lord of Pain Tokka & Rahzar, Terrible Twos Vampire Socialite Vindictive Warden Wake the Dragon
For example, take the Magic booster
Summon: Shiva Summon: Shiva is remarkable in a number of ways
And if an opponent destroys it without removing Sauron, it'll just come back again