And if you can blink everything that damages an opponent, in many decks that's just crazy, crazy value
Disciples of the Inferno Color Indicator: Red Creature Human Monk Prowess (Whenever you cast a noncreature spell, this creature gets +1/+1 until end of turn.) If a noncreature source you control would deal damage to a creature, battle, or opponent, it deals that much damage plus 2 instead
Of course, you need a lot of investment, but it's an option if you ever want to venture on this route
If you're about to have an explosive turn where you make a ton of tokens, be they creature of artifacts, drop Haliya first to rack up the lifegain
Finally, theres energy a mechanic that introduces another resource to the game
Am I just a hypocrite who likes the Green one (that I get to play with) and dislikes the Red and White ones used against me