Talk:Shaman/@comment-68.134.44.223-20160213150127/@comment-5395153-20190329183937

Morph spells are very difficult to use. They have a 50% chance of buffing your units and a 50% chance of debuffing them. Buffing them is useful, but might not win the game all the time depending on the matchup. Debuffing standard units on the other hand can make you lose the game. The amount of damage a Morph Damage spell adds usually isn't enough to compensate for a phantom's lack of damage. The spellcaster would have to be very high level and very lucky to make the combo work. On average, the value that you get from the spell is +0%. It's a reasonable combo, but it's not competitive, no matter what unit or building the morph spells are applied to.

As for Invisibility comboes, that is a good one, but it's not the best (Destruction comes to mind). It's not the most reliable combo due to some races having immunity to Disease. Regardless, it could still work at a high enough hero level.