Why isn't this The One Ring
Heliod, the Radiant Dawn and Heliod, God of the Sun have some upside, but not the pure strategy-boosting abilities of Heliod, Sun-Crowned
Funnily enough, you only really want one of these in your sideboard because drawing it is a complete disaster and basically leaves you down a card, unless you have a way to discard it for value
The relatively strong single-player mode is designed as both an opportunity to practice strategy and very gradually unlock more cards, and my gotta catch em all instinct definitely kicked in
I really felt it had amazing potential
At one point, however, you may not be satisfied by just having a pile of cards hanging around on your desk and you may want (or need) to consider how to best store your cards