Great Oak Guardian

Creature — Treefolk    (CMC:6)

Flash (You may cast this spell any time you could cast an instant.) Reach When Great Oak Guardian enters the battlefield, creatures target player controls get +2/+2 until end of turn. Untap them.

His roots reach deep and grip hard.

079 PZ1 • ENSteven Belledin

™ & © 1993— Wizards of the Coast

Notes: TODO: Check rarity

Legal in: Legacy,Vintage,Freeform,Prismatic,Tribal Wars Legacy,Singleton 100,Commander

Oracle Text (click to copy):

11/4/2015
Great Oak Guardian’s last ability targets only the player, not any creatures. Creatures with shroud that player controls will be affected, for example.
11/4/2015
Any creatures controlled by the player that are already untapped will just get +2/+2 until end of turn.