Could go a touch higher than 500/600.if mint I suppose
But for the immediate future, opening about one foil basic a box adds a nice little boost to the expected value that the set can desperately use, thanks to the lacking rare and uncommon value
If you do, create a token that's a copy of that creature, except it's a Spirit in addition to its other types and it has "When this token leaves the battlefield, return the exiled card to its owner's graveyard." Legendary Creature - Cleric Dwarf Malcolm, Keen-Eyed Navigator Flying Whenever one or more Pirates you control deal damage to your opponents, you create a Treasure token for each opponent dealt damage
By giving ourselves more cards in hand we potentially have recurring resources (like lands), which is a better path to victory than simply depriving our opponent of a few cards to start the game, and hoping they get mana screwed
Let me know in the comments below and, as always folks, good luck & have fun!