Wildheart Shaman

When Wildheart Shaman enters the battlefield, gain control of target creature with mana value 4 or less for as long as you control Wildheart Shaman. If that creature is a Beast, Wildheart Shaman gains +1/+1/ and trample.

"From the frozen peaks, he calls upon the wild bears, their strength a testament to the bond between nature and his spirit."