Wild Cantor

( can be paid with either or .)
Sacrifice Wild Cantor: Add one mana of any color.

Restless Bones

, : Target creature gains swampwalk until end of turn. (It can’t be blocked as long as defending player controls a Swamp.)
: Regenerate Restless Bones.

Centaur Safeguard

( can be paid with either or .)
When Centaur Safeguard dies, you may gain 3 life.

Goblin Spelunkers

Mountainwalk (This creature can’t be blocked as long as defending player controls a Mountain.)

Nullstone Gargoyle

Flying
Whenever the first noncreature spell of a turn is cast, counter that spell.

Indentured Oaf

Prevent all damage that Indentured Oaf would deal to red creatures.