This tattoo is infused with the ancient power of Weaves Blood and the modern ingenuity of arcane knowledge. This tattoo gives the user one charge of a chosen spell before it has to be recharged by:

• Yourself or an ally expends the spell slot equivalent to the spell infused into the Tattoo.
• You take long rest(s) equivalent to the spell level of the spell infused. I.E. Magic Missile would take one day of Long Rest.
• By drinking a single pint of Weaves Blood which replenishes all magical abilities, including Weaves Blood Tattoos.

The spell's DC for saves and attack rolls are based upon the caster of the spell in the first place, and any concentration roll would use the concentration of the Caster itself as the Weaves Blood Tattoo embodies a portion of their willpower.