The node support sometimes buffs my opponent’s creature when they haven’t been buffed previously in the turn.
Also: The card text reads:
Whenever a creature gets buffed, that creature gains “At the end of this turn, this creature gets +1+1” until end of turn
This is quite confusing wording! It would be simpler if it read
Whenever a creature gets buffed, it gets +1/+1 at end of turn
//Edited Title - Tombstone
This is still happening. Creatures buffed on your opponent’s turn (yours or theirs) will be buffed a second time by the Node support at the end of your turn, even if they are not buffed an additional time