That's not even accounting for Singleton formats like Commander
You choose the target of Behemoth of Vault 0's last ability when it triggers, but you don't have to decide whether or not to pay until the ability resolves
For example, it's playable in the Modern graveyard spells matter deck that uses Dragon's Rage Channeler that wants the right stuff in the graveyard to get to 3/3
But even if youre not playing combos, Illicit Shipment can let you go search up an answer card for the battlefield state you need to deal with, and then a follow up card, or it can just go get two of your favorite cards in the deck
Very strong in a madness deck
The options for Starter Decks are Amethyst and Amber, Emerald and Ruby, or Sapphire and Steel