It rewards skill over luck, offers no dead turns, and brings that one-on-one tension Magic players know so well
When it was shiny, new, and exciting
if youre looking for card advantage in a 5-color dragon deck, you could do worse than a 6/6 flier that draws extra cards
Whether the Supernova chain's burst outpaces that recursion in practice isn't something either deck has enough OP-16 tournament data to confirm yet
Five mana is the perfect cost to be the top-end for a grindy midrange deck or a mid-game play for a deck focused on ramping out huge threats like Eldrazi and the like
There's quite a few abilities, so I'd recommend taking a look at the card itself, because you probably forgot at least one of its abilities like the ability to deal damage to a planeswalker when it deals combat damage to a player so be sure to keep a copy handy just in case