I'm strong and you're weak. How's that for simple reasoning?

Limit Break 4 (This ability is active if you have four or more damage):When a «Nova Grappler» rides this unit, choose your vanguard, and until end of turn, that unit gets +10000 and ":When this unit attacks a vanguard, all of your «Nova Grappler» rear-guards in the front row.". :When this unit is boosted by a «Nova Grappler», this unit gets +2000 until end of that battle.
(VC/RC): Lord (If you have a unit without a same clan as this unit, this unit cannot attack)