Beetlemon

[When Digivolving] Until the end of your opponent's turn, this Digimon can't be deleted by your opponent's effects. [When Attacking] 1 of your Digimon or Tamers may digivolve into a black or yellow Digimon card with the [Hybrid] trait in your hand with the digivolution cost reduced by 1.

Inherited effect

[All Turns] When this Digimon would leave the battle area other than by your effects, you may play 1 Tamer card with inherited effects from this Digimon's digivolution cards without paying the cost.

Alternate effect

[Digivolve] [J.P. Shibayama]: Cost 2 [Digivolve] [MetalKabuterimon]: Cost 0