Generate a YGOPro Lua script for the following Yu-Gi-Oh card effect:
"Steamroid" + "Drillroid" + "Submarineroid" A Fusion Summon of this card can only be done with the above Fusion Materials. If this card attacks a Defense Position monster, inflict piercing battle damage.
--スーパービークロイド－ジャンボドリル
--Super Vehicroid Jumbo Drill
local s,id=GetID()
function s.initial_effect(c)
	--fusion material
	c:EnableReviveLimit()
	Fusion.AddProcMix(c,false,false,44729197,71218746,99861526)
	--pierce
	local e1=Effect.CreateEffect(c)
	e1:SetType(EFFECT_TYPE_SINGLE)
	e1:SetCode(EFFECT_PIERCE)
	c:RegisterEffect(e1)
end
s.material_setcode=SET_ROID