Poltergeist is the most insane, allowing players to view the opponent's hand, and based on the number of Trainer, Stadium, and Supporter cards they have, this attack deals damage of 30 times the number of those cards in the opponents hand, making way for absurd knockouts
Grinding Station and any zero-drop mills your opponent out
UR Ultra Rare C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common C Common R Rare SE Secret Rare Privacy Settings To use Yu-Gi-Oh
I guess giving Vanilla decks another generic Ritual Spell of sorts lets them do more stuff, but given the current list of Rituals that currently exist, not too much they can really go into that would complement their plays AND is worth using in the competitive world
Adding to that, with a Nihilego in play, Poison damage from any source you inflict will be amplified by 10
Vullaby takes 20 additional damage from Lightning-type attacks