rainbow gx pokemon cards Evolves from Pikachu Type Lurantis GX 150/149 SECRET RARE

It's a riff on Birthing Boughs, which has a similar activated ability with the numbers tweaked just a bit differently

As you can see, your foe becomes a Monarch this turn when he ETBs, and you cannot swap over after your combat this turn

As an aside, my enjoyment of these cards highlights that Im not against the digital-only nature of the cards being introduced in sets like Alchemy

Discard effects can go even further, eating away at your opponents hand each turn to deprive them of resources in the long game

While it doesnt interact with other skeletons specifically, its undoubtedly the leader of any skeleton horde