Blood Ritual

Spawns a blood pentagram on the ground that only the caster can see. The pentagram will stay on the ground until the caster dispels it, or a creature touches it. When the pentagram is touched, it becomes visible to all creatures. The creature that touched it must perform a 1 d20 DEX saving throw. If unsuccessful, the pentagram becomes a portal that pulls them into a pocket dimension, healing the caster 2 d10 hit points in the process. If successful, they are not pulled into the pocket dimension and instead, take 1 d20 gravity damage.