Muxus, Supreme Commander

When Muxus, Supreme Commander enters the battlefield, reveal the top six cards of your
library. Put any number of Goblin cards with
converted mana cost 3 or less and with total
converted mana cost 5 or less among them onto
the battlefield. Put the rest on the bottom of
your library in a random order.
Whenever Muxus attacks, it gets +1/+0 until end
of turn for each Goblin you control.