Alisaie has Dualcast, letting the second spell you cast on your turn cost 2 mana less, which helps out Alphinauds ability, Eukrasia which has you draw a card after casting a second spell
On top of that, it gives other non-Human Creatures you control +1/+1 and undying, which makes any ETB effects you have significantly more valuable, and makes all of your threats a lot more, well, threatening
Leinore, Autumn Sovereign herself, alongside Luminarch Aspirant, work exceedingly well with creatures like Mikaeus, the Lunarch, Heronblade Elite, Champion of Lambholt, Sanctifier en-Vec, Seasoned Dungeoneer, Garruks Harbinger, and Gyre Sage
The downside to this strategy is that, because Indomitable Creativity just cheats in whatever you flip off the top of your deck first, you cant put any creatures or artifacts into your deck besides what you want to cheat into play
So, what is causing the McDonalds Pokemon card 2021 value to rise so high