She buffs the team and enables you to constantly be gaining life, triggering your Resplendent Angel and Angelic Accord, and is just a very powerful body on her own as a 5/5 body with flying, first strike and lifelink
I also like it in Type Four which often has elevated casting costs to bring back due to the infinite mana nature of the format, and bringing back a giant 10/10 and gaining 8 life in one card is pretty strong there
Finally, the newest Special Condition is being Burned, which acts much like being Poisoned but results in two Damage Counters being placed on the afflicted each turn instead of one
1 Lotho, Corrupt Shirriff
Other cards like Ajani's Last Stand also play around discard nicely
I mean, what you say is fundamental and all