The dungeon is filled with undead monstrosities and at the end lies the deadly Siren, who attempts to steal away the souls of the party members
For 4GG, you reveal the top seven cards of your library and look for any one of twelve relevant keywords (haste being the one Kathril doesnt mention), putting a creature with one of those keywords onto the battlefield and the rest into the graveyard
Or even to your plan against decks with powerful two-card engines, where you need to try and put them on the fastest clock you can early, and then time your discard spells to keep them stuck on (at most) half a combo
In other formats, most players are loath to pay this much for an effect they cant fully control or even guarantee will have targets
Beloved companion Dogmeat commands the red, green, and white Scrappy Survivors deck, where players will scavenge for tokens and cover their creatures in Aurus and Equipment
There is no shortage of powerful creatures to make copies of, which is what allows Creative Energy to shine as a precon