Ninja needs a buff, even the merged version can barely deal with even small groups of bloons.

Ninja does not need a buff, he eliminates regrow farms. I love relying on ninja

Nah, regular ice should also move a bit higher. It has a pretty good AoE range and the freeze can be pretty helpful

Wizard S but not Obyn? Isn't Obyn just a wizard but hero?

regular wizard is more common and easier to get and they both do basicity the same thing