All Sliver creatures have “This creature gets +1/+1 as long as you control a Swamp.” All Slivers have “{B}: Regenerate this permanent.” (The next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)
Flying You don’t lose unspent red mana as steps and phases end. When Leyline Tyrant dies, you may pay any amount of {R}. When you do, it deals that much damage to any target.
Indestructible {T}: Add {C}. {5}, {T}: Add five mana in any combination of colors.
Whenever you cast an instant or sorcery spell, flip a coin. If you lose the flip, return that spell to its owner’s hand. If you win the flip, copy that spell, and you may choose new targets for the copy. Partner (You can have two commanders if both have partner.)
Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.
Goblin spells you cast cost {1} less to cast. Goblins you control have haste.
When Siege-Gang Commander enters, create three 1/1 red Goblin creature tokens. {1}{R}, Sacrifice a Goblin: Siege-Gang Commander deals 2 damage to any target.
{T}: Add one mana of any color. Tap an untapped legendary creature you control: Add one mana of any color.
Flying You may reveal the first card you draw each turn as you draw it. Whenever you reveal an instant or sorcery card this way, copy that card and you may cast the copy. That copy costs {2} less to cast. When God-Eternal Kefnet dies or is put into exile from the battlefield, you may put it into its owner’s library third from the top.
+1: Untap two target lands. −1: Create a 3/3 green Beast creature token. −4: Creatures you control get +3/+3 and gain trample until end of turn.
Flying Whenever you draw a card, Niv-Mizzet, the Firemind deals 1 damage to any target. {T}: Draw a card.
When Eternal Witness enters, you may return target card from your graveyard to your hand.
Flying Whenever you cast an instant or sorcery spell that targets a creature you control, exile that card instead of putting it into your graveyard as it resolves. If you do, return it to your hand at the beginning of the next end step.
All Slivers have “When this permanent enters, destroy target artifact or enchantment.”
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