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, instead tap it, remove it from combat, and heal all damage on it.)
Their flesh is as sodden as the fens in which they live, oozing to fill any wound and squishing to absorb any blow.
Near Mint - $700
Lightly Played - $600
Moderately Played - $500
Heavily Played - $500
Damaged - $400
Near Mint Spanish - $700
Lightly Played Spanish - $600
Moderately Played Spanish - $500
Heavily Played Spanish - $500
Damaged Spanish - $400