It's supposed to be a different card: they meant to give away the other Victini, and I think they want the situation to be equivalent to having given them the correct card (just with some funny, non-legal thing accidentally received)
Plus, the life gain is always relevant in a meta where I expect about 20% Mono-Red, and Toxin Analysis is basically a limited combat trick that sometimes ends up being powerful enough even in Constructed
Well, because that's how many there are, and leaving Herald of KozilekHerald of Kozilek off the list felt wrong when it was definitely going to make the actual deck list
The poison apple in Snow White is certainly one influence on this card, but so too are stories like Hansel And Gretel , where witches seek out children to eat
The Forbidden and Limited Card List balances the meta in Yu-Gi-Oh Master Duel by dictating what cards are limited in their use