How fast can you take them off
A players maximum hand size isnt checked at any time other than their own cleanup step
So if you have Sparkling Crystal on a Cinderace ex, and you are missing that Fighting Energy to be able to use its Garnet Volley attack, you can use Sparkling Crystal to bypass that attack
With the recent printing of Maralen, Fae Ascendant, Stolen by the Fae has some extra utility, too
The new boss monster, "Blue-Eyes Toon Ultimate Dragon", is a massive 4500 ATK monster that can be summoned from the Extra Deck by shuffling "Blue-Eyes Toon Dragon" and two other Toon monsters from hand, field, and/or GY into the Deck
Terra, Magical Adept Commander players shouldn't get all the fun, so here's a combo that'll work in Standard, and only takes two cards: Terra and Yenna, Redtooth Regent