booster box team up S&M Case SM09 A collectors box Team Up Sleeved Booster Packs:

Despite their look of outward aggression, most are lacking in the brute strength department

Both Azorius Soldiers as well as Knights are potential archetypes in the new format, and while Zephyr Singer lacks these creature types it still plays great with the other cards regardless

You can even play 2 dragondark so drawing 1 wont be the end of the world since you have another one in the main deck so you can do the combo Make it a 40 card deck - you can cut the handtraps/removal cards and the extenders down to a lower size and make it a 40 card deck, I felt like for consistency I need to make it 50 but 40 cards are also great

Just looking at the powerful Blacephalon-GX, you can combine it with Beast Ring from Forbidden Light to attack fiercely with its Mind Blown attack