Spending 2 loyalty will allow you to turn any creature into a treasure artifact, which is a very fun way of removing a threat or converting a useless creature on your side of the field
Incubate dinosaurs, anyone
Bruna, the Fading Light is on this list because you can meld it into Gisela, the Broken Blade and form Brisela, the Broken Nightmare
Any abilities that trigger when a creature with a certain power enters the battlefield, such as that of Mentor of the Meek, will see the token enter as a 0/0 creature before it gets +1/+1 counters
Bone Miser is Waste Not turned into a creature and on yourself
If you despise the Final Fantasy wizard as much as me, you're welcome to join the Wargamer Discord for more tabletop discussion (Cauldron players keep out!) You could also check out our MTG release schedule guide to see everything coming up in the next 12-ish months.