Vines of Vastwood

Kicker {G} (You may pay an additional {G} as you cast this spell.)
Target creature can't be the target of spells or abilities your opponents control this turn. If this spell was kicked, that creature gets +4/+4 until end of turn.

The List

Modern Masters 2015

Kicker {G} (You may pay an additional {G} as you cast this spell.)
Target creature can't be the target of spells or abilities your opponents control this turn. If Vines of Vastwood was kicked, that creature gets +4/+4 until end of turn.

Zendikar

This is not the same as hexproof. If, for example, you target one of your opponent’s creatures, your opponents won’t be able to target their own creature with spells or abilities.