See Oath Test. To interact with Oath. This isn't asnparasitic as my other attempt, since +1/1 counters appear more often. Still, should I remove it caring about what kind of counters? This mechanic would be like constellation or inspiration, in that the condition will always be the same (gaining a +1/+1 counter), but effect different from card to card.

I think it's a good idea to care about the type of counter. Imagine how it would change in theme and gameplay if it interacted with -1/-1 counters.

Actually, I think thta's a good reason to NOT care. +1 and -1 don't typically share an environment; and allowing it to do more interestnig things out in the wild wooly environment of "What cards can I throw together?" is a good thing. At least, as long as it's not game breaking.

And if they WERE allowed to share; well, you could do interesting things with a card that feels one way in one set (hah! Power me up, and I freeze you!) and differently in the next one (wither ME will you? Hah!)

Should this be "a +1/+1 counter" or "one or more +1/+1 counters"?