Ormuna: Mechanics

Champion a creature: When this enters the battlefield, sacrifice it unless you exile another creature you control. When this leaves the battlefield, that card returns to the battlefield. Used on 0 cards:

Brought back from the Lorwyn block, champion is used in the Ormuna block to represent either the sentient races sending off heroes OR the saurians arriving and replacing smaller creatures.

Unity: This creature gets +1/+1 for each other creature you control that shares a color with it. Used on 0 cards:

This mechanic represents the communal bonds between the sentient races, showing how they band together for survival (each race spans over two allied colors).

Primal: If you control three or more creatures, you may cast this spell for its primal cost rather than its mana cost. Used on 0 cards:

This mechanic is used to represent spells that are connected to the ancient magic on Ormuna.

In card text or details pages, write the mechanic's code name (playtest name) between square brackets, like "[Crittercast]", "[Bushido 1]" or "[Delay 4 {2}{R}{R}]". It will be expanded to the mechanic's name plus reminder text, such as "Suspend 4 – {2} {r} {r} . (Rather than cast this spell from your hand,...)"
To expand a mechanic's name but not its reminder text, include parentheses at the end of the square brackets: "[Crittercast()]", "[Delay 9 {R}()]".