Conflux

{T}: Add one mana of any color. Spend this mana only to cast a creature spell.

Domain — Target creature gets +1/+1 until end of turn for each basic land type among lands you control.

Vigilance, trample Whenever Meglonoth blocks a creature, Meglonoth deals damage to that creature's controller equal to Meglonoth's power.

Domain — Search your library for a basic land card, put that card onto the battlefield tapped, then shuffle. Exploding Borders deals X damage to ta...

Vigilance {T}: Reveal the top card of your library. If it's a land card, put it onto the battlefield. Otherwise, put it into your hand.

Rupture Spire enters the battlefield tapped. When Rupture Spire enters the battlefield, sacrifice it unless you pay {1}. {T}: Add one mana of any c...

Target creature gets -3/-0 until end of turn. Cycling {2} ({2}, Discard this card: Draw a card.)

Apocalypse Hydra enters the battlefield with X +1/+1 counters on it. If X is 5 or more, it enters the battlefield with an additional X +1/+1 counte...

Creatures you control get +1/+2 until end of turn. Untap those creatures. Basic landcycling {1}{W} ({1}{W}, Discard this card: Search your library ...

Flying Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.) {2}{R}: Pestilent Kathari gains first strike until end o...

Exile target creature. Its controller may search their library for a basic land card, put that card onto the battlefield tapped, then shuffle.

Target player gains 8 life. Basic landcycling {1}{G} ({1}{G}, Discard this card: Search your library for a basic land card, reveal it, put it into ...

{T}: Target land you control becomes the basic land type of your choice until end of turn.

Protection from white

Counter target noncreature spell. Its controller loses 2 life.

{1}{W}: Kranioceros gets +0/+3 until end of turn.

Domain — Create a 1/1 green Saproling creature token for each basic land type among lands you control.

Enchant creature Enchanted creature gets +2/+2 and can't block.

Domain — {3}: Wandering Goblins gets +1/+0 until end of turn for each basic land type among lands you control.

{1}{B}, {T}: Target player discards a card. Activate only during your turn.

Flying Exalted (Whenever a creature you control attacks alone, that creature gets +1/+1 until end of turn.)

As Nyxathid enters the battlefield, choose an opponent. Nyxathid gets -1/-1 for each card in the chosen player's hand.

Trample Islandwalk (This creature can't be blocked as long as defending player controls an Island.) Shroud (This creature can't be the target of ...