The combined result of these two abilities will be an endless war, fought among your opponents but not involving you, giving you ample opportunities to plot, scheme, and pick the bones of your fallen foes for card advantage
If you use Terra as your commander, you have access to constant reanimation but only for creatures of a certain mana value (and Celes can only set up your graveyard)
8 Stitch: Rock Star Stitch is another character with a particularly popular Disney Lorcana Enchanted variant, in this case elevating the value of his Carefree Surfer card
There a ton of other cards from the set that are seeing high levels of play, including Necrodominance, Warren Soultrader, Phyrexian Tower, Flare of Denial, Flare of Malice, Toxic Deluge, Fanatic of Rhonas, Consign to Memory, Arena of Glory...honestly, I could keep going, but it's not really necessary
The first of these is called Paradox, and lets you put a +1/+1 counter on a target creature whenever you cast a spell from anywhere other than your hand