Avacyn 7
You can put your commander over on the right, far enough out of the way that it's clear it isn't in play
From the multicoloured cards, there are nine Izzet (blue/red), four Azorius (white/blue), four Boros (red/white), four Simic (green/blue), three Dimir (blue/black), two Selesnya (green/white) one Rakdos (black/red), one Gruul (red/green), one Selesnya (green/white), two Orzhov (white/black), one Golgari (black/green),one Jeskai (blue/red/white), one Grixis (blue/black/red)
which will trigger effects like Ugin's Binding or Kozilek's Unsealing for much cheaper
Unsealed Product Pricing: RanisTheSlayer, via r/MagicTCG To help limit scalping and ensure the community has fair access to product: If you are okay with us unsealing your product at pickup, we will honor the original preorder price
Murktide is also a graveyard-dependant threat this means that Relics of Progenitus, Rest in Peace and other graveyard hate, that are typically decent against blue-based decks, can stop this dragon from being a good threat or to be castable at all