I say things like Deaths Shadow is easy to play, but thats really Deaths Shadow is easy to play if your job has been playing games with these cards since Bitterblossom was in Standard. Im a very heuristics-based player, and fortunately for you that lets me put a lot of the tips and tricks for what I know about these cards into easy-to-digest snippets
Im not sure about Knights, but Merfolk getting a pile of +1/+1 counters is downright dangerous
Graded Population Report: Charizard EX #201 Visualize the distrbution of grades in the chart
its name becomes "Fleur Synchron", also it is treated as a Tuner, until the End Phase
When any player casts an instant or sorcery spell, Niv-Mizzet deals damage to any target
To improve gameplay, Pocket could implement Energy manipulation to support Dragon decks and enhance diversity