Flash (You may cast this spell any time you could cast an instant.)
Reach
When Great Oak Guardian enters, creatures target player controls get +2/+2 until end of turn. Untap them.
Any creatures controlled by the player that are already untapped will just get +2/+2 until end of turn.
04-11-2015
wotc
Great Oak Guardian's last ability targets only the player, not any creatures. Creatures with shroud that player controls will be affected, for example.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.