Challenge the Storm

Draw 2 cards. Target creature you control gains
armor X until end of turn, where X is equal to
half the number of cards in your hand, rounded
down. Then it fights up to one target creature
you don't control.
"As the two warriors drew their swords, the storm
grew more and more relentless. The warriors knew it
would be their final battle. Knowing the tragedy to
come, they gave their last goodbyes, and set off on
their final and most dangerous adventure."