This would be a design space we'd revisit quite often
Over the last week, Ive challenged myself to build Standard legal decks using the four different elemental mechanics from Magic: The Gathering | Avatar: The Last Airbender
While Odric, Blood-Cursed wants a deck to do a couple different (and even opposing) things, what he does really well is generate a tremendous amount of card velocity for Boros that ultimately lets you play a long game with lots of answers
Unlike the Signets, they can tap for either colored or colorless mana, but the former comes at the cost of life
Illustrated by: James Ryman Multiverse ID: 193490 Not Legal Traditional Standard Not Legal Traditional Alchemy Rulings 2010-06-15 Training Grounds won't affect a cost that isn't the cost to activate a creature's activated ability
If, or rather when, this happens, demand for Eye of Nidhogg will drop, likely causing its price to plummet