He immediately makes up for that by returning 2 cards from the inkwell to the player's hand, however, and can keep generating value as a great card for questing
For more information on collecting these cards and their Booster Fun treatments, read our guide to Collecting Magic: The Gathering | Avatar: The Last Airbender
Equip variants or equip abilities with restrictions, like the "equip legendary creature" ability of Wrecking Ball Arm, are still equip abilities, and their costs will be reduced by Cloud's last ability
We definitely want to retain some of the hand and graveyard sculpting, but the hand part will come from slightly more aggressive card draw
You can fog an attack, Mistbind their lands, untap blockers as a combat trick and so on and that is all very cute but you don't play four mana situational cards of that kind of level in cube
He also makes food tokens cost one less mana to activate