Zulaport Cutthroat is a close second, but Blood Artist triggering on any creature dying puts it firmly into first place, making it the backbone of any aristocrats strategy
In Pokemon TCG Live, players will Compile an extensive card collection that you can use to build fun and exciting decks
Joraga Warcaller is also a flexible addition, which can be a basic 1/1 Elf Warrior for one green mana, or come into play with extra +1/+1 counters for every time you pay the two-mana multikicker, allowing him to be dropped first turn or held in reserve until he can be a real monster
After playing some more Regidrago in this format, I believe I've nailed the list down
Memory Jar has also fallen quite far from grace, now typically only being used when it can be abused with Goblin Welder and the new Daretti
I can cycle it early by exiling a noncreature card