Ballinel, Warrior Queen

Double Strike, Vigilance
Whenever a Knight enters the battlefield under
your control, Ballinel, Warrior Queen gets a
+1/+1 counter.
{1}{r/w}{r/w}: If a Knight you control dies as a result of
being targeted by an opponent's spell, Ballinel
gains your choice of indestructible, menace, or
trample until end of turn.