You got it.

The druid can exit the form and the form ability card returns to the action bar in the ready position ( insert joke here ).

Yeah, the form is never readied, it just returns to the action bar in readied position, so Viper Sting doesn't affect it (unless you found a way to exhaust it 'legitimably' with, say, Mana Tap or Mind Blast).

---

"The beatings will continue until morale has improved."
- Standard corporate management technique

Simalar question

Shadow Sun viper sting forms?

would like an answer

could you articulate your question?

He has decided
to answer and ask questions
With his mighty Haiku's

woops! messed up with the last line :)

Thoughts on cases, Syllables bound

No Excuses, Sense must be found

Endeavors these, Promised not light

For ill efforts, Regards are frowned

Never give an inch

To a friend, or he might

Become a ruler.

---

I quit
I'm done
This game's
No fun

AMF

1811756:

could you articulate your question?

I think he is asking if you could Mana Tap a form card before being used.  In that case it is still an ABC and could still be exhausted, and Viper Sting would prevent it from readying.  Correct?

Yes, of course it would. It's just a regular ABC at that point.

You can't Mana Tap it while the character is in Form, since the card is removed from the action bar at that point.

You also can't stop it from returning readied via Viper Sting if the character dies or goes out of form, since it's returned ready, it never actually tries to ready.

---

"The beatings will continue until morale has improved."
- Standard corporate management technique