If you want every card in your deck to sparkle without breaking the bank, reverse holos get the job done
One drops have a much higher coloured mana requirement than more expensive spells and are therefore that much more inclined towards incurring a colour screw
Legendary Creature - Dragon Iroh, Dragon of the West Haste Mentor (Whenever this creature attacks, put a +1/+1 counter on target attacking creature with lesser power.) At the beginning of combat on your turn, each creature you control with a counter on it gains firebending 2 until end of turn
Effects like these don't even come close to being unhealthy, once they're totally alternative and depend on players' disposition to pay this small tax each time the condition asks for it
Their win conditions were our tiebreakers
Yeah, you do net a little Energy in the event they kill it, and it does give you another way to spend Energy