Effect
When this card is Normal Summoned: You can increase the Levels of all Machine-Type monsters you currently control by 1. If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent. If this card attacks, it is changed to Defense Position at the end of the Damage Step.
The effect "When this card is Normal Summoned: You can increase the Level of all Machine-Type monsters you control by 1" is a Trigger Effect. (This effect does not target. It is applied to all face-up Machine-Type monsters in your Monster Zone, including this card.)
If "Drill Jumbo" is Normal Summoned by the effect of "Ultimate Offering" activated as Chain 2 or higher, you cannot activate its effect.
The effect "If this card attacks a Defense Position monster, inflict piercing battle damage to your opponent" is a Continuous Effect.
The effect "If this card attacks, it is changed to Defense Position at the end of the Damage Step" is a Continuous Effect.
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