Equalize

Choose two willing creatures that you can see within range. Until the spell ends, both creatures have an AC and walking speed equal to the higher numbers between the two of them. If a creature has a walking speed of 0, then it does not gain a walking speed bonus from this spell.

If a creature is under an effect that increases their AC or walking speed, such as the haste spell or the longstrider spell, then the second creature is also affected by the boost to AC or walking speed but gains no other benefits from the spell.