Moyasu, Veins of Magma

Trample, haste
Whenever Moyasu blocks, becomes blocked, or
becomes the target of a spell or ability you don't
control, discard any number of cards. Moyasu
deals that much damage divided as you choose
among any number of targets, then you draw
that many cards plus one.
{r}: Moyasu gets +1/+0 until end of turn.