With both Enchantments in play, you can pay one generic mana to change any of your opponents' Creatures into a Reflection
On top of that, Aurora, Dreaming Guardians three strength and five willpower pair with its two lore to make it a solid card by itself, able to likely withstand a few attacks in the early game - especially given that having Shift 3, allowing you to bring it out on top of another Aurora card for a lower ink cost, means you can have it on the field very early on
If youre lucky, you might even snag a Foil Borderless Mythic Rare, which only appears in about 1% of boosters
4 Needle Spires Double strike is such a powerful ability that you would play it for free if you could, right
Cantrips just make decks more often than not, and as somebody who Cubes with Mental Note more than most Im very excited about Consider