boost pack pokemon Super Electric Breaker Japanese Booster which has the ability Enduring Heart Journey Together (SV09) Booster Pack

Cards that let you play multiple lands a turn offer similar value

It still sees a good amount of play in Pioneer, although this is usually in Greasefang, Okiba Boss decks

You can get a decent amount of value out of it if you build in flicker effects

Other possible upgrades include things that trigger when you draw or discard a card, like Glint-Horn Buccaneer, Rielle, the Everwise, and Chasm Skulker

The sets pretty new, so prices are still moving around quite a bit as people get a handle on just how rare these chase cards really are

Boros Card Draw Engines Card draw engines are spells that draw cards over the course of the game