I've really enjoyed the interaction between W&6 and Dack. It's almost like a squee effect to make Dack +1 that much more valuable l.

@serracollector Whoops, scratch the pump narset part! It does come at opposing Narsets, Dacks, and Karns in a meaningful way though.

Dack is 100% the most relevant red walker and has massive synergy with Chandra's first 0 ability as well as its -3. Getting to a Dack Emblem is a somewhat underrated accomplishment in my opinion. It's hard to judge the continued viability of 4 total pyroblasts in Jeskai in a pre-london mull Meta; the MTGO results are largely Dredge and Brown while SCG top 16 looked largely blue. In the Jeskai mirror, this card is actually pretty good. It comes at opposing narsets/dacks with 2 dudes, Scores you an extra "azcanta" on your narset, gets an unpressured Dack to emblem 2 turns early (without losing the dack, mind you). As a casual aside, this RFG's opposing Bridge From Below's.

In other formats, this and Nicol Bolas, Dragon God could be pretty nuts, you can ultimate Bolas on the third turn after they are both in play.

@khahan my objection is not to 10-15 proxys, but to 45-75 proxys. Proxys need to be capped, and 15 cards represents 25% of your main deck; A generous portion. I will also reiterate my concerns regarding greater number of proxys leading to more Counterfeits. If the collective TOs in the room (which I believe you are one of) disagree that there is a connection, then I will defer to that experience.

Ah this old dead horse. The fact is that the overwhelming majority of Vintage is 100% non-proxy and is played on MTGO. We are reaching (more likely we are past...) the point where this is the only vintage that Wizards and the DCI care about in making high level decisions for the format. The rest of vintage, the vintage played on paper, is almost always 15 proxy, with the notable exception of Eternal weekend and whatever SCG decides to plan (important to note that the original SCG P9 series was 5 or 10 proxy). In 2019, the line between "proxy" and counterfeit is blurred to the extreme. TO's post multi paragraph expectations on what a proxy is and isn't, and still players show up with their very real looking counterfeit Power, Shops and Bazaars. A shift to 100% proxy will quickly become 75+% Counterfeit, with the average player either not able to identify, or just not caring what their opponent sleeves up in your average casual 15 person proxy vintage event from across the table. If I may introduce a totally subjective "salt factor" into the equation, non or low proxy players will be FAR saltier losing to a deck thats 75% sharpied basic lands than to a deck that 75% Chinese counterfeits that are barely distinguishable from the real thing without removing the card from a sleeve and examining it. I have no objection to Proxy's (and use them myself when needed) but playing against a deck thats mostly handwritten in a tournament setting stinks and hurts my overall experience when I am taking time out of my insane schedule to play Magic for 6 or 7+ hours.

There is (was) a dearth of instant speed affordable red spells that deals with 4+ toughness creatures. Roast is limited in scope and a sorcery, and Rending Volley was decent vs Mentor and not against much else.

There is a TON of value in 1 shotting dack, karn, or the usual big eldrazi, and I wish this cost 1 less, the same as murderous cut.

This card will be a tremendous boon for dredge, especially as blue decks have to gravitate away from Priest due to its lack of synergy with Narset. This card is more vulnerable to tormods crypt, but good dredge players can usually play around crypt effectively in either games 2 or 3. The dredge player being able to dredge their deck without having to worry about milling through answers makes the deck auto pilot far more effectively post board. Sorcery speed basically does not matter for the dredge player.

Its probably easier to leave the mulligan rule as is for eternal formats than have to deal with multiple rounds of bannings/restrictions before they got this right. The odds of them deciding to restrict bazaar and workshop are lower than the failure rate of finding a bazaar w/ serum powders. I mean do you keep bazaar and restrict what?, grave troll, narcomoeba, and serum powder? Maybe hollow one? Is leyline of anticipation.dec automatically tier 1? Would we be locked into additional shops restrictions? How unfun would game 2/3's be on the play vs blue.dec when they can aggressively mull to FOW? Do all these things balance out in the wash? Far too many unknowns for my liking when considering nearly unlimited card pools.

Also (chuckles to self) the idea that MODO would program the new mulligan + Serum Powder interaction correctly out of the gate is low probability as well.

@smmenen My early impressions of Lavinia are similar. In time I believe it will be compared to Chalice of the Void in terms of how it impacts the game, and the "unfunness" of games where it hangs around for extended periods. Playing alternating rounds of Shops, PO (w/Lavinia), Jeskai Xerox (w/Lavinia), and Dredge can lead to some pretty unfun 5-7 round events depending on draws/mulligans.