Haste

Until the spell ends, the target's speed is
doubled, it gains a +2 bonus to AC, it has
advantage on Dexterity saving throws, and it
gains an additional action on each of its turns.
That action can be used only to take the Attack
(one weapon attack only), Dash, Disengage,
Hide, or Use an Object action. When the spell
ends, the target can’t move or take actions until
after its next turn, as a wave of lethargy sweeps
over it.