Sellen, The Graven Witch

Ward {1}, Persist.
If Sellen enters the battlefield without a -1/-1 counter: Create three 0/1 black tokens.
{1}: You may move a -1/-1 counter from this creature to target token you control.

Glintstone sorceries you control cost {u} less to cast
and have ward {1}.
When you cast a sorcery or instant you may pay 1 life to reduce its cost by {1}.