Unlike Metsubishi, Sleeping powder cannot be countered as it is tactic. and no skill can counter tactic. And less skills stun sleeping powder if your enemy had the first turn. But yes Sleeping powder needs a boost but if it isn't infinite think of the tons of mental users who unlike some ranged users, have only the invulnerability skill and mental skills. So instead maybe sleeping powder should stun both mental and tactic skills for two turns and/or bypass invulnerability.

Sleeping Powder can be stunned by Yume and Sainan.

Actually, sleeping powder is easier to stun as metsubishi happens to be the only ranged-specific stun

whereas as marcel said, there are two tactic specific stuns

Discuss this in the balance thread. Locked.