The Legendary Praetor works well with Planeswalkers, Sagas, and Creatures which are widely used in Commander, allowing you to get ahead on the board while your opponents struggle
Its similar to One Piece in that your main resources (memory) dont actually exist in the deck, so once again we have a game thats trying to forego any issues similar to mana screw/mana flood in MTG
As for what Tifa making it into the deck while the other characters have to settle for booster packs really means, there's a chance someone at Square Enix made that decision based on which in-game romance is canon
Remember to respect vigilance, its much stronger when you have two or more opponents
You usually see Vorinclex in Standard in Mono-Green Aggro lists as a top-end threat
Still, the card was a Tier 1 staple, even frequently appearing in nonblue decks