In addition to that, it can even combo off with other cards in the deck, giving you a ton of advantage with just one use
I am really sad that Koraidon is neglected and only gets a tool that reduces damage while Miraidon get's an item you can play 4 of that can accel energy
it's also got a built-in milling activated ability to speed up the slow drain he causes
Skyship Plunderer, Thrummingbird, and Winding Constrictor combine with most of our Energy makers to help grow our resources, while +1/+1 counter-based cards like Reyhan, Fabrication Module, and Hadanas Climb work in tandem to make our Proliferate triggers more impactful
Both cards also allow you to cheat out a Level 4 or lower Spirit monster (the former from the hand, the latter from the deck) to the field, and since its not normal summoned, can remain on the field and not return to the hand
This card wouldve been terrible even if it werent for its cumulative upkeep, which means you have to pay 1 more mana each turn to keep this already awful charade going