Brynjar, the Dragonslayer

Haste, menace
Other Vikings you control get +1/+1
Whenever you attack with one or more Vikings,
reveal that many cards from the top of your
library. Put any number of Viking creature cards
among them onto the battlefield and the rest on
the bottom of your library in a random order.
When there were no more giants to slay, he turned to
an even greater challenge: Dragons.