Osvald, True Scholar

If a creature died this turn, the next instant
or sorcery spell you cast has its cost reduced by
one of any color of mana. If one of your creatures
died this turn, reduce the cost by {1} more. This
ability can only trigger once per turn.
Whenever a Traveler enters the battlefield,
Scry 3 and then draw a card. This ability can
only trigger once per turn.
"Study harder..." -Osvald