Leyr, the Prodigy

Haste, Ward {3}
At the beginning of your upkeep, you may draw
an additional card. Discard it if it isn't an instant
or sorcery card.
{t}, {u/r}: Exile the top card of your library. As long
as you control Leyr, the Prodigy, you may play
the cards exiled this way, and they cannot be
countered.