Uncanny Protection

You touch a creature and bolster its focus, making it extremely receptive to protective energy.

For the duration of the spell, the target is able to stack up to two events that provide temporary hit points, as well as any effects associated with these temporary hit points. The temporary hit points and effects are stacked in the same order that they were gained; the last gained temporary hit points are the first to be depleted by damage, and depleting an entire event's temporary hit points also removes any effects. If the target receives temporary hit points an additional time, the temporary hit points and effects of the earliest event are removed.

In addition, the target automatically succeeds on Concentration saves against damage that is entirely absorbed by temporary hit points. A Concentration save against damage that is not entirely absorbed by temporary hit points will have its DC reduced to only that of the damage taken by actual hit points.

When this spell ends, all of the target's temporary hit points and associated effects disappear except the ones gained from the latest event.

At Higher Levels. When you cast this spell using a spell slot of 3rd level or higher, you can stack one additional temporary hit point event for each slot level above 2nd.