Based on the latest market prices tracked on TCG Stacked, The Water Crystal is worth about $7.65 USD for a regular copy and $10.04 USD for a foil copy
Agathas Soul Cauldron offers a combination of making your abilities costs generic, negating opponents recursion, buffing creatures, and building up a stack of abilities across your board
Outside of these upgrades, we get an improved mana base, with channel lands and Mishra's Foundry, and a few sideboard improvements, like Reckoner Bankbuster for more card draw against control and Unlicensed Hearse over Lantern of the Lost for graveyard hate
Rating: 3/5 Rafiki - Mystical Fighter Rafiki gets a second Amethyst card and this one is a 1-cost 0/2, but he has Challenger +3
Illustrated by Bryan Sola Standard Not Legal Alchemy Not Legal Pioneer Legal Historic Legal Modern Legal Brawl Legal Legacy Legal Comp
Well start off the versatile Inventors and their helping hands