Urza's Saga (usg)
#169 • rare • English • Non-Foil
#169 • rare • English • Non-Foil
Witch Engine 
5
Creature — Horror
Swampwalk (This creature can't be blocked as long as defending player controls a Swamp.)
: Add 


. Target opponent gains control of this creature. (Activate only as an instant.)
Illustrated by Kev Walker
Links
Legalities
Not Legal
Not Legal
Not Legal
Not Legal
Legal
LegacyNot Legal
Legal
vintageLegal
CommanderNot Legal
Not Legal
Rulings
Because the ability is targeted, it is not a mana ability. It can only be activated when you have priority, and goes on the stack like other non-mana abilities.
2008-04-01 • wotc