Ashaya will usually be a big creature, so cards that scale based on power and toughness are excellent
With infinite mana, you can use the same strategy you used to recur Lotus Petal to loop Finale of Devastation into a hasty Deathrite Shaman, which you can activate an endless amount of times to drain opponents out of all their life
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
Gitrog isn't afraid to dance on the knife's edge and get rid of your most valuable game pieces---including the very lands that allow you to cast spells at all---in exchange for completely different pieces
However, since it's an FF-limited build, I think it's fine
This Green Dinosaur is my highest charting uncommon in the set