Reidane, God of the Worthy / Valkmira, Protectors Shield My suspicion is that people who run Reidane, God of the Worthy in their deck arent casting Valkmira, Protector's Shield nearly enough
Its also really easy to break, as all you need is two creatures that can flicker each other, which not only produces infinite +1/+1 counters on your creatures, but also scales firebending up to make infinite mana when Zuko attacks
Pollywog Prodigy This little Frog just wants to get bigger and draw you cards
Knight-Errant is the backbone of this strategy and the namesake of the deck as it allows you to continue refilling your hand with threats while also making use of your tokens as mana sinks
However, where its value really lies is in that second effect
It also gets its own removal spell if you pay 7 and transform it into Hydaelyn, the Mothercrystal