Sliver King

All Slivers have Landwalk based off their
card's color. (Their casting cost.)

(If a Sliver has {w} in their casting cost, it gains Plainswalk. If a Sliver has {u} in their casting cost,
it gains Islandwalk. If a Sliver has {b} in their casting cost, it gains Swampwalk. If a Sliver has {r}
in their casting cost, it gains Mountainwalk. If a Sliver has {g} in their casting cost, it gains Forestwalk.)