I’m curious; I’ve been building a deck with Zaxara the Exemplary as my commander. For those who don’t know, she has a passive ability that allows you to create a green 0/0 hydra token whenever you cast an X Cost card with +1/+1 counters equal to X. Now, if this where paired with the Twincaster; would the counters be duplicated as well or just the 0/0 hydra?
Adrix and Nev, Twincasters (and please use the full card names so we don't have to go searching)
You will get two tokens and both get the counters. See the last Ruling in Gatherer for this answer: