When Together Forever enters, support 2. (Put a +1/+1 counter on each of up to two target creatures.) : Choose target creature with a counter on it. When that creature dies this turn, return that card to its owner’s hand.
If some, but not all, targets for a spell become illegal, the remaining targets are affected as appropriate. If all of a spell's targets become illegal, that spell doesn't resolve.
08-06-2018
wotc
If a spell with support has other abilities that target creatures, those abilities and the support ability can target the same creature.
08-06-2018
wotc
You can't put more than one +1/+1 counter on any one target using the support action.
08-06-2018
wotc
Support can target a creature another player controls.
08-06-2018
wotc
Together Forever's activated ability checks whether the target creature has a counter on it as the ability is activated and as the ability resolves. If the creature loses its counters later in the turn, the delayed triggered ability will still return it to its owner's hand when it dies.
08-06-2018
wotc
If a creature without counters receives enough -1/-1 counters to reduce its toughness to 0 or less, Together Forever's ability can't be activated before state-based actions put that creature into its owner's graveyard.
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.