Talk:Oni/@comment-96.42.36.149-20190419052625/@comment-93.142.239.246-20190419104941

Ofc it can be usable, just like Player's Handbook Tieflings can use darkness only starting from level 5, I don't see the problem restricting "Cone of cold" until Oni PC reaches level 9 (Its freaking Homebrew, as long as you have an open minded and understanding DM it can be balanced without an issue).

Another example: "Perma invisibility a problem?"

Easy, make uses scalable;

1 use per long rest / levels 1-4, 2 per long rest / levels 5-9, 3 per long rest / levels 10-14, unlimited / level 15+