Essentially, if you have a full party with all four of these on the board, you can pay one white, one blue, and one black mana to give the Warrior lifelink, deathtouch, and make him unblockable (deathtouch and unblockable at the same time has no real use, but thats still OP to think about)
Dinner Bell wouldnt make most of my Sealed Decks either, as its only useful in the very late game

$22.99 Tifa, Martial Artist (0188 - Extended Art) Final Fantasy Commander Decks Variants $15.99 Lulu, Stern Guardian (0143 - Extended Art) Final Fantasy Commander Decks Variants $4.99 Yuffie, Materia Hunter (0158 - Extended Art) Final Fantasy Commander Decks Variants $14.99 Vincent, Vengeful Atoner (0157 - Extended Art) Final Fantasy Commander Decks Variants $5.99 Professor Hojo (0161 - Extended Art) Final Fantasy Commander Decks Variants $12.99 Cid, Freeflier Pilot (0131 - Extended Art) Final Fantasy Commander Decks Variants $3.49 Barret, Avalanche Leader (0166 - Extended Art) Final Fantasy Commander Decks Variants $16.99 Aerith, Last Ancient (0163 - Extended Art) Final Fantasy Commander Decks Variants $7.99 Alphinaud Leveilleur (0140 - Extended Art) Final Fantasy Commander Decks Variants $24.99 Sephiroth, Fallen Hero (0182 - Extended Art) Final Fantasy Commander Decks Variants $8.99 Cait Sith, Fortune Teller (0151 - Extended Art) Final Fantasy Commander Decks Variants $5.99 Elena, Turk Recruit (0133 - Extended Art) Final Fantasy Commander Decks Variants 0 results found

Putting the deck together requires you to determine how your mana will be able to cast spells and summon creatures, so limiting yourself to two or three colours is a good place to start