Boost abilities have conflicting stat bonuses. Boost: Cyclops 3 states that it gives +3 damage, +6 HP, +1 defense, and +1 speed, These are the stats that are actually applied. The condition that units gain states something different. It says that the champion is only receiving +3 damage, +1 speed, and +1 HP. I've noticed this for multiple boost abilities, though I don't know specifics.
Yeah, seems like all the boost abilities have this problem. It is probably that the abilities got buffed at some point in time but the condition was never updated. Good thing the proper stats seem to be applied to the champions despite the description for the condition is wrong.
It is actually that all the boost 3s got nerfed to lose the +1 at one point then the text got edited incorrectly and we are where we are now.