The second ability is also deeply underwhelming, even in dedicated Energy lists
It's cheap, and quite good, but the power isn't there as much, so it's just hitting at 5, but it's quite good in decks like Spellslinger in Jeskai (built around Whirlwind of Thought), storm, aggro that casts a few spells on your turn like Glorious Anthem and Isamaru, Hound of Konda, control decks with a bunch of instants, flash-matters, and then other key places as well
Wizards says these 53 are game changers
Mithril Coat - Hammer of Nazahn at instant speed
Finally, Imperial Hellkite can be played early with morph, and when you morph it up, you Tutor your deck for a Dragon while also netting a solid creature for your efforts
Decking In a constructed format where the minimum deck size is 40 cards, decking your opponent is a more attractive option than is usually the case, when they have a larger deck