Sedge Sliver 187 (Time Spiral: Remastered)

All Sliver creatures have "This creature gets +1/+1 as long as you control a Swamp." All Slivers have "{B}: Regenerate this permanent." (The next time it would be destroyed this turn, instead tap it, remove it from combat, and heal all damage on it.)

NM - $2.20
LP - $1.90
MP - $1.50
HP - $1.50
DMG - $1.50