Whenever a Forest you control enters, this creature gets +2/+2 until end of turn.
Whenever you cast a Treefolk spell, this creature gets +2/+2 until end of turn.
Illustrated by Steve Prescott · Lorwyn · #197
There are no rulings for Battlewand Oak.
Landfall — Whenever a land you control enters, this creature gets +2/+2 until end of turn.
Whenever another creature you control enters, this creature gets +1/+1 until end of turn.
Whenever you cast a red spell, this creature gets +1/+1 until end of turn.
Whenever you cast a green spell, this creature gains forestwalk until end of turn. (It can't be blocked as long as defending player controls a Forest.)
Landfall — Whenever a land you control enters, this creature gets +1/+1 until end of turn.
Whenever an artifact you control enters, this creature gets +1/+0 until end of turn.