Anna Henrietta, The Duchess

Whenever a virtue counter is put on a Knight
creature you control, that creature gets +1/+1
and gains vigilance until end of turn.
Whenever a Knight you control dies, if it had
a virtue counter on it, draw a card.
{t}: Put a virtue counter on target Knight creature
you control. It gains hexproof until end of turn.
Activate this ability only any time you could cast
a sorcery.