Make them big and attack all at once, or sacrifice them one by one to drain your opponent
This would be fine if pumping every Cube with a bunch of mana acceleration led to good gameplay, but frankly, it doesnt
There's even backend code to support it
Jim Hawkins Honorable Pirate isnt a card you want in your starting hand, but if you survive until turn 7 (or 6 with Pooh) and play him youre almost guaranteed a couple of card draws
Even though Cloud, Ex-SOLDIER offers additional card draw for each equipped creature, it still ends up being far better to just focus on piling everything on Cloud and protecting him rather than spreading it out: you'll kill people faster with commander damage, you'll reap bigger rewards off stuff like Behemoth Sledge gaining you way more life, and it's simply easier to protect a single creature than trying to protect your entire board
Sephiroth, Fabled SOLDIER / Sephiroth, One-Winged Angel is a Mythic, Legendary Creature - Human Avatar Soldier / Legendary Creature - Angel Nightmare Avatar card from the Magic The Gathering set Universes Beyond - Final Fantasy (MTGSC-FIN-0382)