Last big update for a while, since I got lots of cards I wanted at the same time.

Multicolor

I'm cutting 1 multicolor card from each pair of colors since I needed some room and there were some underwhelming options. Nothing specific to say about individual cuts.

White

I've long wanted to include Field Surgeon as the representative of Urza's Destiny and I think it can be a decent in matchups very focused on creature combat or against red. I'm also thinking of having some creatures that trigger when tapped, so it is a bit of a seed.

Flutterfox makes way to the phyrexian Kite, which can play a similar role of just being a small evasive creature but also gives you late game options/reach for bigger creatures.

On the Job replaces Dauntless Unity since, while less flexible on mana cost, is much more flexible on situations of the game in which you want to play it. Since it gives you back the card, you don't need to save it just for the final attack like you usually do with team pumps.

Embolden serves the dual purpose of having a card that can trigger multiple "heroic" creatures while also giving white a small bit of card advantage with flashback. It also means you won't be losing any combat.

I'm swapping Intrepid Rabbit for the Unicorn because it works with "heroic" creatures, while maintaining modality and helping white with plays that are not overextending into sweepers or removal.

Arynx feels like just a strong beater that helps white having good topdecks and using creatures the turn they enter. Martyr's Soul is just ok and can only tap creatures once :P

Blue

Appraiser is just a great rager variant, giving you some selection and filling your graveyard for that early Treasure Cruise.

Drake is just a decent creature which can make your card draw or counters cheaper, while blocking well and being evasive for more aggressive decks.

Black

Mire Grasp was ok but I wanted something that could be picked up with Kor Skyfisher for that grindy Mardu style of play (I recently added Experimental Synthesizer as well). Tithing Blade is decent and has additional late game utility if needed.

There were many times Defile couldn't be more than a Disfigure, with the amount of non basic lands we run, so I'm replacing it with Wither and Bloom, which is more consistent, has extra graveyard value and I like to have a small counters theme in black.

I'm always happy reducing the amount of MHx cards so I'm replacing Ransack the Lab with Search, which if you really need it can put up to 4 cards in the graveyard while also always drawing you 2. Instant speed is great too.

Red

Pillage is added as the representative from Alliances, but it also increases the artifact removal density and it is a great play after a couple of cheap creatures for destabilizing slower decks, specially if they play bouncelands.

Seize Opportunity is an all-rounder for going wide-ish, heroic themes and card flow in red.

The Bogardan Dragonheart swap for Gatekeeper is to diversify a little bit the use of bodies in red and RB specifically. Most of the sacrifice outlets will be on black, and red can "use" bodies entering or leaving the battlefield without specifically sacrificing them (we still have some though).

Green

Sylvan Might and Ram Through help with pushing damage much more than what Savage Swipe could ever do, while also working as removal in a way. I really like having this flashback effect for green as card advantage as well. I'm removing Galadhrim Bow since we have tricks and reach creatures, and it doesn't work in the heroic theme I'm trying to implement (PS: I need to get that Gnarlback Rhino).

Evolution Witness is a great use of cards that add counters that is very different from "just beat down with them". Happy to give green some sort of card advantage as well.

Dance of the Tumbleweeds is just the perfect ramp card, giving you ramp "early" and a big monster late. Remember it can also fetch Desert so it's also a nice build around.

Other

I'm swapping Hidden Grotto for the Pylons because of the desert subtype, as just a nice bit of additional synergy for Dance of the Tumbleweeds. No big deal since they're just identical otherwise.

Spined Thopter was there as a card that any aggressive deck could grab and play since it's just a 2 mana 2 power evasive creature. But usually you always have more playables than needed, so what's better than a land that only aggressive decks would want to play? I think it can be really good there, in any (mostly) monocolored aggro deck.