Langis Dexim, Rigidan Sire

Whenever a player casts a spell, if Langis Dexim
is untapped, tap him. Otherwise, untap Langis Dexim.
As long Langis Dexim is untapped, creatures you control have lifelink. Otherwise, creatures you control have deathtouch.
"Your ruler ought shed blood - both his enemy's and his own."