As two actions, you ward a willing creature that you can touch or see within 10 meters and create a connection between you two until the spell ends. While the creature is within 10 meters of you, it gains a +2 bonus to Defense and saving throws, and it has resistance to all damage. Each time it takes damage, you take the same amount of damage.
The spell ends if you drop to 0 health or if you and the creature become separated by more than 10 meters. It also ends if the spell is cast again on either of the connected creatures. You can dismiss the spell on your turn (no action required).
You can target one additional creature for each additional mana expended. The creatures must be within 5 meters of each other when you target them.