actually it was an example. so actually i did 'make' them up. that was kinda of the point to give a rough outline

cruel cryptic sword of quickness

oaksage healing...
lets say you have 2000 life
and with oaksage you have 3200 life

you get hit a few times from an opponents attack, your hp goes down to 2100

your oaksage dies, and after about 10 seconds the aura wears away

now your life will be 2000/2000 again, and if you cast your spirit it will go back up to 3200/3200

if you can summon your spirit after those times quickly you can "oak heal" allowing you to gain back your life