13 Hearthstone First and foremost we've got to start things off with probably the biggest Digital CCG in recent memory, Hearthstone
This card becomes playable (and strong!) through its Plot ability, which allows you to play it without paying its cost on a later turn when you've already slung some other spells
MTG ARENA VAULT REWARDS SYSTEM The Vault is an additional reward system that is triggered by progress
Thats up there with the rarest pulls from All Will Be One, the concept Praetors
However, nostalgia-based cards from 151 (like Dragonair, Gengar, Scizor) should hold their value better because nostalgia doesnt rotate out like tournament decks do.If you're betting long-term, I'd personally prioritize holding Gengar, Scizor, and Dragonair over competitive trainers
Tron decks appear in plenty of formats, and their common rarity makes them popular choices for Pauper decks