I've been playing a similar list junk midrange (current standard) ; I would voice or ooze over the lion. As a past u/w player I understand the hate for pesky dragons ;P but we have downfalls, dragon's don't worry us. There are just better cards out of side to run than colossus. underworld connections is an excellent card that I would try to find a slot for. Albiet the only reason I'm running this deck is because they can run archangels, I still think she is an excellent card, especially if you are running scooze/courser.Courser of kurphix has start to become a liability with the constellation deck running around, and the subsequent enchantment hate that everyone has started boarding, so you might be able to get an extra slot out of 1-2 of those.

hope this helps . and let me know if you find out anything interesting, I'm still fairly new to the deck as well.

I'll suggest use one ore two Mana Confluence, and cut down the 4 Lion's and the Duress for another two demons and complete the 4 toughtsize. Send the Duress to side, maybe two only.But, it depence on your meta enviroment, if theres is many burn decks, you sholud try then 3 duress main and 2 toughsize, and instead of 4 demons, maybe 2 scavenging ooze and 3 Viskopa for the lifelink or make room for 2 Archangel of Thune..There is already a powerfull deck like this one, with savenging, Archangel of Thune y Courser, the sinergy is pretty strong, but they still have a little problems agaisnt burn.Well, thats my opinion, good luck.

Hello, thanks for the comments and feedback!

Those are all good advices and most of them have been on my radar already.

I am planning to add 2 Confluences when I get either the trade or the money to add them.

I am hesitant to using more than 2 Thoughtseizes because my meta seems full of burn, but I won't hesitate playing more if the meta here shifts again.

The main thing right now is that I need to get all the cards and start playing.

Only then do I feel that I can make decision like swapping lions for oozes and archangels and things like that. Thanks for the feedback!

1 Vraska the Unseen instead of an elspeth is another idea. she's a permanent solution to enchantments and other annoying things. mana confluence can be a double edged sword; these decks do lots of damage to themselves unless you can stabilize with the coursers. I ran with 2 at a lack of the extra temples, but I never was unfortunate enough to get both in hand.