"One's next attack" refers to the next action or move someone plans to make in a situation, which is often strategic or aggressive in nature. Full definition
Lara's next attack fires in a cone shape, dealing physical damage to multiple close range targets. (videogamesuncovered.com)
The Gunners were pushing for an equaliser that, at that stage, they would probably have deserved — but City's next attack on 28 minutes would further punish the home side. (mancity.com)
You need to F ** n head up break the opponent in next attack. (justarsenal.com)