First mana, second sd.

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Because Runes are items, Potions are items
and USABLE items SHARE SAME 1 SECOND COOLDOWN...

Just use spells man, exori vis/ flam/mort whatever
and stop using utamo vita!

i posted energy ring macro while ago, Look for it and use it.

Potions cause a 1 second exhaust to other potions and to runes, but not to instant spells.