MTG

{T}: Add {C}. {B/G}, {T}: Add {B}{B}, {B}{G}, or {G}{G}.

{T}, Pay 1 life: Add {G} or {W}. {1}, {T}, Sacrifice Horizon Canopy: Draw a card.

{T}: Add {C}. Morph {2} (You may cast this card face down as a 2/2 creature for {3}. Turn it face up any time for its morph cost.)

{T}: Add {C}. {G/U}, {T}: Add {G}{G}, {G}{U}, or {U}{U}.

{T}: Add {C}. {4}{W}{U}, {T}: Prevent all damage a source of your choice would deal this turn.

Simic Growth Chamber enters the battlefield tapped. When Simic Growth Chamber enters the battlefield, return a land you control to its owner's han...

{T}: Add {C}. {T}: Add {R} or {G}. Each opponent gains 1 life.

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

{T}: Add {C}. {W/B}, {T}: Add {W}{W}, {W}{B}, or {B}{B}.

{T}: Add {C}. {G}{U}, {T}: Put a +1/+1 counter on each creature that entered the battlefield this turn.

{T}: Add {C}. {U/R}, {T}: Add {U}{U}, {U}{R}, or {R}{R}.

{T}: Add {C}. {B/R}, {T}: Add {B}{B}, {B}{R}, or {R}{R}.

({T}: Add {G}.)

({T}: Add {W} or {U}.) As Hallowed Fountain enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

(Dryad Arbor isn't a spell, it's affected by summoning sickness, and it has "{T}: Add {G}.")

({T}: Add {G}.)

({T}: Add {R}.)

Tolaria West enters the battlefield tapped. {T}: Add {U}. Transmute {1}{U}{U} ({1}{U}{U}, Discard this card: Search your library for a card with ma...

{T}: Add {C}. {T}, Sacrifice Ghost Quarter: Destroy target land. Its controller may search their library for a basic land card, put it onto the bat...

({T}: Add {G} or {U}.) As Breeding Pool enters the battlefield, you may pay 2 life. If you don't, it enters the battlefield tapped.

({T}: Add {R}.)

Magosi, the Waterveil enters the battlefield tapped. {T}: Add {U}. {U}, {T}: Put an eon counter on Magosi, the Waterveil. Skip your next turn. {...

({T}: Add {G}.)

({T}: Add {R}.)