Iridian Sunder

When Iridian Sunder enters the battlefield, attach it to target Warrior you control.
Equipped creature gets +X/+0, where X is the number of cards you’ve drawn this turn and has First Strike.
Whenever equipped creature attacks, you may discard your hand. If you do, draw cards equal to the number of cards discarded this way plus one.
Equip {1}{u}{r}