This deck all about X costs in cards, and Hydras happen to be the best Magic creatures in these colors for X
This Green Dinosaur is my highest charting uncommon in the set
Ashaya will usually be a big creature, so cards that scale based on power and toughness are excellent
Another possible combo is with Capsize, following the same Buyback logic as Searing Touch, but this costs 1 generic and 2 Blue with Buyback 3, so it can only return a handful of permanents to their owners' hands
While this may be annoying, remember that you can add multiple Flairs to a card so it's not like you're losing out on anything you unlock
A creature with Protection from a quality, let's say a colour for simplicity, can't be targeted by spells and abilities of that colour (like Shroud, that's regardless of who controls them)