During the End Phase, activate "Gustav Rocket" to destroy itself, which is prevented by "Goliath"
At time of writing, theres only one Near Mint listing on TCGplayer, for one cent under $400

Orfeo, the Boulder 0.2%inclusion 6 decks 2.40K decks Zilortha, Strength Incarnate 0.2%inclusion 6 decks 3.86K decks Purphoros, God of the Forge 0.1%inclusion 4 decks 4.75K decks Rivaz of the Claw 0.1%inclusion 4 decks 5.41K decks Wildsear, Scouring Maw 0.1%inclusion 4 decks 3.93K decks Orthion, Hero of Lavabrink 0.2%inclusion 3 decks 1.45K decks Gisela, Blade of Goldnight 0.1%inclusion 3 decks 2.93K decks Omnath, Locus of Rage 0.0%inclusion 3 decks 8.79K decks Tannuk, Steadfast Second 0.0%inclusion 3 decks 9.45K decks Neheb, the Eternal 0.0%inclusion 2 decks 4K decks Ashling, Flame Dancer 0.0%inclusion 2 decks 5.01K decks Obosh, the Preypiercer 0.1%inclusion 2 decks 1.77K decks Xenagos, God of Revels 0.0%inclusion 2 decks 8.18K decks Magda, Brazen Outlaw 0.0%inclusion 2 decks 17K decks Rocco, Cabaretti Caterer 0.0%inclusion 2 decks 9.29K decks Ashling, Rekindled 0.0%inclusion 2 decks 4.88K decks New Cards Black Widow, Agile Avenger 20%inclusion 17%synergy 1 decks 5 decks Epic Fight 7.1%inclusion 6%synergy 1 decks 14 decks Absorbing Man and Titania 7.1%inclusion 6%synergy 1 decks 14 decks Training Compound 6.7%inclusion 4%synergy 1 decks 15 decks The Mind Stone 5.0%inclusion 3%synergy 1 decks 20 decks High Synergy Cards Yargle and Multani 85%inclusion 83%synergy 121 decks 142 decks Serra Avatar 82%inclusion 82%synergy 145 decks 176 decks Soul of Eternity 76%inclusion 76%synergy 134 decks 176 decks Riveteers Ascendancy 77%inclusion 74%synergy 110 decks 142 decks Mr

If you sink mana into it to level them up, it becomes a pretty nice life gain payoff
Perhaps the most surprising reprint from this entire release is DarknessDarkness