This is a good card, but one that requires being used in a specially-prepared deck - preferably a deck loaded with sorcery and instant cards for dealing damage, as opposed to lots of creatures
Its mana cost is slightly higher but is on a creature which gets around a lot of counter spells that are non-creature targetable
(8/25/2017) You can't choose multiple creature types, such as "Cat Warrior." A Cat Warrior is both a Cat and a Warrior
One of the best-case scenarios if youre looking to run Smelting Vat in your deck is to sacrifice a Spine of Ish Sah, digging for up to two artifacts with a combined mana value of six
Teferi also hamstrings your opponent's instant spells and anything they have that might have flash
4 Clarabelle, Light On Her Hooves Cant Stop Dancing Drawing cards is vital in practically any trading card game and Clarabelle, Light on her Hooves is one of the best ways to draw cards right now in Lorcana, though she does come with a small stipulation