Move Creation Workshop

[All Might]

Passing on One For All - 300 OM - Buff Proficiency

All Might gives an ally some of his DNA, with intent to transfer his power to them. 

As opposed to My Hero Academia, the effect here is both immediate, and temporary. For about three minutes after taking in All Might's DNA (usually in the form of a plucked hair), the intended recipient will gain some of All Might's powers, specifically, temporary stat increase of 1 in ATK and SPD, as well as temporary use of Burst Movement and Master Super Jump.

The underside of this is that during those three minutes, All Might temporarily loses 1 point of SPD and ATK stats, and will not have access to any of his other moves. In addition he will also be unable to use any of his powers for the duration of those three minutes. 

Once his powers and stats have returned at the end of the three, for approximately an hour afterwards he will be exhausted and in pain, which will hamper his ability to fight.