Sapphire Ring

Description
While in a cast slot, gain 3 Max Mana.

Cast to throw a 40 damage shot.

Strategy and Synergy
This spell synergizes well with, but doesn't show up that often. Adding generally isn't much of a benefit, as you will generally spend your Mana before reaching maximum Mana.

Sometimes it feels like a worse version of, which adds one for the remainder of the battle. Since this spell requires the player to use up one of their spell slots, is often picked over this spell, although it adds one  to the players deck.

The rarity of Sapphire Ring plays into the difficulty of utilization as well, generally by the time that you're likely to get Sapphire Ring you have already established a Mana base that is strong enough to cast whatever spells you'd like to cast.