Chain Contingency

Choose up to 3 spells of 8th level or lower that you can cast, that have a casting time of 1 action, and that can target you or a single creature. You cast those spells--called the contingent spells--as part of casting chain contingency, expending spell slots for each spell, but the contingent spells don't come into effect. Instead, they take effect when a certain circumstance occurs. You describe that circumstance when you cast the spells and choose if the spells target yourself, the closest creature or the creature that triggered the spell. For example, you can target a creature when it speaks a certain word.

The contingent spell takes effect immediately after the circumstance is met for the first time, whether or not you want it to, in the exact order in which they were originally casted and then chain contingency ends. If more than one spell require you to maintain your concentration, you lose concentration on all but the last casted spell. A contingent spell is lost if it can't be casted on the target at the moment when the triggering circumstance is met.

The contingent spells take effect only on the target, even if they can normally target others. You can use only one contingency or chain contingency spell at a time.

If you cast this spell again, the effect of another contingency or chain contingency spell on you ends. Also, chain contingency ends on you if its material component is ever not on your person.