Salvager Roboticist

Whenever you discard three or more cards, you
draw a card.
{r}, {t}, Discard your hand: Create a colorless
X/X Construct artifact creature token, where X
is the number of cards discarded this way. For
every three cards discarded this way, it enters
with your choice of a first strike, trample or
haste counter on it.
Nothing goes to waste.