pokemon cards arceus – Vstar 184/172 – Brilliant Stars – Secret Rare – Gold Holo Evolves from null Type Arceus Cards | Dex -

And yes, you can equip another mobilize creature with it to stack the triggers

Legendary Creature - Angel Ruthless Technomancer When this creature enters, you may sacrifice another creature you control

At six packs per player in a sealed event, that equates to 3,000 boosters opened

Conversely, with Chronomaton the problem was that youd invest a lot of time and mana into a creature, and then when you finally got around to trying to do something with it your opponent could just kill it and youd have nothing to show for it but Hangarback Walker is very much the opposite unless your opponent has just the right removal spell