Tempered Sliver [Modern Horizons] Countdown Calendar Promos so that the combined ATK

so that the combined ATK of the remaining monsters they control becomes less than or equal to your LP

Set: Legendary Collection 2 Card type: Fusion/Effect Monster Rarity: Super Rare Attack: 2500 Defense: 2000 "Elemental HERO Neos" + "Neo-Spacian Aqua Dolphin" Must first be Special Summoned (from your Extra Deck) by shuffling the above cards you control into the Deck

you can detach 1 Xyz Material from this card instead of destroying 1 of those monsters

But I'd never seen anything as dreadful as that

Tempered Sliver [Modern Horizons] Countdown Calendar Promos so that the combined ATKSet: Modern Horizons Type: Creature Sliver Rarity: Uncommon Cost: {2}{G} Sliver creatures you control have "Whenever this creature deals combat damage to a player, put a +1 +1 counter on it." The question isn't whether slivers will adapt to a world's perils but whether the world's perils will adapt to slivers.