Gatecrash

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

Flying

({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 {C}. {2}, {T}: Thespian's Stage becomes a copy of target land, except it has this ability.

Gruul Guildgate enters the battlefield tapped. {T}: Add {R} or {G}.

Simic Guildgate enters the battlefield tapped. {T}: Add {G} or {U}.

When Prophetic Prism enters the battlefield, draw a card. {1}, {T}: Add one mana of any color.

Gruul Guildgate enters the battlefield tapped. {T}: Add {R} or {G}.

Equipped creature gets +1/+0 and can't be blocked by creatures with flying. Equip {3} ({3}: Attach to target creature you control. Equip only as a...

Boros Guildgate enters the battlefield tapped. {T}: Add {R} or {W}.

Dimir Guildgate enters the battlefield tapped. {T}: Add {U} or {B}.

{T}: Add {R} or {G}. {R}{G}: Gruul Keyrune becomes a 3/2 red and green Beast artifact creature with trample until end of turn.

{T}: Add {W} or {B}. {W}{B}: Orzhov Keyrune becomes a 1/4 white and black Thrull artifact creature with lifelink until end of turn.

{T}: Add {G} or {U}. {G}{U}: Simic Keyrune becomes a 2/3 green and blue Crab artifact creature with hexproof until end of turn. (It can't be the ta...

{T}: Add {R} or {W}. {R}{W}: Boros Keyrune becomes a 1/1 red and white Soldier artifact creature with double strike until end of turn. (It deals bo...

{T}: Add {U} or {B}. {U}{B}: Dimir Keyrune becomes a 2/2 blue and black Horror artifact creature until end of turn and can't be blocked this turn.

Orzhov Guildgate enters the battlefield tapped. {T}: Add {W} or {B}.

When Prophetic Prism enters the battlefield, draw a card. {1}, {T}: Add one mana of any color.

{1}, {T}: Razortip Whip deals 1 damage to target opponent or planeswalker.

Equipped creature gets +1/+2. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)

Flying

Equipped creature gets +1/+0 and can't be blocked by creatures with flying. Equip {3} ({3}: Attach to target creature you control. Equip only as a ...

{1}, {T}: Razortip Whip deals 1 damage to target opponent or planeswalker.

Equipped creature gets +1/+2. Equip {2} ({2}: Attach to target creature you control. Equip only as a sorcery.)