You can combo off by targeting the dragon with your own spells, too
Naturalize Anger Annex Birchlore Ranger Basking Rootwalla Cabal Ritual Cabal Coffers Wishes Chain of Vapour Chain of Plasma Chainer's Edict Circular Logic Devastating Dreams Dwarven Blastminer Enchantress Presence Fiery Temper Genesis Goblin Piledriver Goblin Sledder Ichorid Krosan Reclamation Lightning Rift Mirari's Wake Mesmeric Fiend Nantuko Husk Nantuko Shade Nostalgic Dreams Putrid Imp Riptide Laboratory Sickening Dreams Skirk Prospector Sparksmith Sylvan Safekeeper Tainted Lands Violent Eruption Voidmage Prodigy Weathered Wayfarer Whipcorder Wirewood Herald Wonder 10
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
You don't have to choose any targets for Summon: Ixion's second or third chapter ability
If you want to gain life in big installments, then Martyr of Sands can be a go-to card
