Frostburn Weird is just... bad. There is no purpose to use it. Try a previous suggestion, or just add in 2 Monastery Swiftspears.

PS Quicken is useless mainboard with no sorceries.

I use it to get easy devotion. And it's useful with Clout of the Dominus I also have 10 sorcery spells mainboarded

The best part about Think Twice is that you can save mama for a counterspell and if they don't cast anything, then you Think Twice. I also maintain that Izzet Charm is amazing. It can even fuel your Spellheart Chimera.

I run Quicken to take advantage of my card draw spells. I am still considering Izzet Charm. I need to do some play testing when I get the deck

love how unique this deck is. Even though people are telling you to change it to pretty much a standard delver deck, I would vote against it. You also seem to have enough devotion to run Nykthos, Shrine to Nyx

@firesoftheforest17 - Thank you so much for the compliment :3 I will probably skip on nyxos because I don't really need that much mana. If I was running any X spells I would consider it. Drawing the shrine early would slow down this deck more than it is worth it. Thank you for the suggestion :D

I think I would suggest Nivix Cyclops over Riverfall Mimic. His defender is deceptive. Plus he can be an unexpected killer when defending. Play a couple instants and he's suddenly a 7/4 defender. Or, after they've tapped themselves out of attackers, pop a couple instances and put him up to 7/4 again and swing hard. Once your opponent knows what he can do, he'll always be wary of attacking you in fear of making him a monster that'll kill his attackers, or hurt his life pretty good.

I like the changes you made to this deck a lot! Young Pyromancer would still be amazing in this deck, even if you don't put any other delver cards in. He doesn't work as much with Clout of the Dominus though.

Young Pyromancer will always be a good card for instant/sorcery spells. I just don't like him too much in this shell. I may make a similar deck to this one without Clout of the Dominus in it and go the route with Young Pyromancer.

I take Riverfall Mimic because it becomes unblockable and only costs 2 mana.