Heck, you can pay a whopping 2 plus WUBRG (that's one of each color of mana, plus an additional two mana) to Earthbend 5
Cards are themed with one of six ink keys: Amber, Amethyst, Emerald, Ruby, Sapphire, and Steel
Large equip costs can really slow down your game if you dont have a way to get around them, and can often result in you wasting mana for a card you dont even get to use
having a cheap one in the command zone makes your deck more consistent and efficient
The fact that you can cast Tiamat with this in play and put five dragons on the table is very interesting and splashy, but in competitive MTG, this spells win more. Either way, this card can create loops when you cast a dragon again and again for free, but youre either cheating Dracogenesis into play or dumping 8 mana into it Omniscience is already a thing, by the way