Evolution Witness
Creature — Elf Shaman Mutant
: Adapt 2. (If this creature has no +1/+1 counters on it, put two +1/+1 counters on it.)
Whenever one or more +1/+1 counters are put on this creature, return target permanent card from your graveyard to your hand.
She remembers every breakthrough, from the gene's mutation to the new life's propagation.
Nereida
Modern Horizons 3 (MH3)
• #424Rulings
If a creature somehow loses all of its +1/+1 counters, it can adapt again and get more +1/+1 counters.
(wotc • 2024-06-07)
You can always activate an ability that will cause a creature to adapt. As that ability resolves, if the creature has a +1/+1 counter on it for any reason, you simply won't put any +1/+1 counters on it.
(wotc • 2024-06-07)
Rulings
If a creature somehow loses all of its +1/+1 counters, it can adapt again and get more +1/+1 counters.
(wotc • 2024-06-07)
You can always activate an ability that will cause a creature to adapt. As that ability resolves, if the creature has a +1/+1 counter on it for any reason, you simply won't put any +1/+1 counters on it.
(wotc • 2024-06-07)