Talk:Mods 2.0/@comment-194.16.105.66-20130522083626/@comment-9227355-20130522125534

No, it just contributes to a "exp bar" of some sort for that rank 3, using a rank 0 would just yield less "exp" than you would if you used higher rank.

-Fusing is actually more like, sacrificing one mod to gain "experience" the other