While theres plenty more you can do with this deck, starting with these combos is a great place to start, and will help you tackle some of the best decks in the format right now.
That inheritance is naturally reflected in Galufs Final Act, which not only briefly boosts a creatures power (a nod to Galuf going all out as he takes on Exdeath 1v1), but lets it pass on +1/+1 tokens equal to its power when it dies
If Prowess players can find opportunities to get the ball rolling, Astrologians Planisphere may put on the hurt in the Standard format
TCGplayer lists John Silver card number 82/204 at a market value of $9.11 USD at the time of writing
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
You could even add Loot, Exuberant Explorer or Hugs, Grisly Guardian for extra land drops and card advantage