Pencil Koala

:Forerunner (When a unit of the same clan rides this unit, you may call this unit to ) (This ability is active if you have one or more face up G units in total on your or G zone):When an attack hits a vanguard during the battle that this unit boosted ([Boost]), choose one of your other rear-guards, and you may have it get +4000 until end of turn. If you do, at the end of that turn, draw a card, and retire that unit.