This synergy is fantastic because Coatls are very good at leading to a stall where the opponent would rather not trade a creature for them and chooses to just cast more creatures while waiting to draw a removal spell, and then you can really punish them with Dead of Winter
Overgrown Zealot There is a chance this card is better than Sylvan Caryatid
Mana sinks that occupy part of their turn, but not all of it, that can be effectively double-spelled with other things
Change of Heart/Brain Control If you use Change of Heart/Brain Control on your opponent monster and that card is weak, do not attack with it
Therefore, his darkness was that he wanted to win whatever it takes, the very same reason he joined the Society of Light
Some Stage 2 Pokmon also have attacks that cost low energy, so they can begin attacking immediately