Sapphire has some great items, including several new cards in the next set such as Aurelian Gyrosensor and Lucky Dime, and Scrooge McDuck, Richest Duck in the World can allow you to play these without paying a single ink
The longer Heroic Outlaw stays in play, the more it can help, or be a threat.
Doing his best Stoneforge Mystic impression, Cloud is an auto-include in any white Voltron Commander strategy
One great tip from Steve regarding ink cards when building a deck is for players to make sure that at least 90% of the cards in their deck have ink icons on them
The Lost Caverns of Ixalan The Lost Caverns of Ixalan draft boosters make an interesting set, but if you miss your plays on turns one, two, and three, you're in big trouble with the aggressive 1 and 2-drops out there