Muxus, Goblin Grandee

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