Miirym's ability to copy dragons is perfect for a dragon-heavy build like this , and will get you a lot of extra value out of your creatures
Its flexible, and it can slot into any deck playing enough mana rocks and colorless lands, any deck that wants to make large amounts of mana
A Reserved List repeal might not open the floodgates for Legacy and Vintage, but it would certainly widen the gap in the doorway a little
Everyone wants the chaos, so we invariably roll off Undercity Reaches too soon
But Tide's real value lies in its miracle cost: if it's the first card you drew this turn, you can cast Tide for just two mana
Chances are good that you aren't nearby, but my larger point is that you should check out and support your local game stores