On the flipside, you could build a Y'shtola deck that doesn't focus on this Creature package at all, and you can win the game through alternate conditions, whether that's by dealing enough damage with Y'shtola herself or casting cards like Sheoldred, the Apocalypse, Bloodchief Ascension, or a personal pet card, Approach of the Second Sun
Enchantment - 1
In this vein, cards like Arclight Phoenix, Chrome Host Seedshark, Shark Typhoon, and Metallurgic Summonings are excellent payoffs for this kind of deck
Its not just Energyits Energy with prestige and a bit of sparkle
In every previous case, however, these cards were fun extras
If you are like me, it is sickening to see WotC hold the line on the three-cost counterspell law