Hymn of Swelling

Creature spells you cast from your hand this
turn have flash, cost {1} less to cast, and can't
be countered. You and permanents you control
gain protection from up to two different colors
of your choice until end of turn. Until end of
turn, whenever you cast a creature spell,
draw a card.
At the beginning of the next endstep, exile your
hand and graveyard.