A normal froststrike as 2h does a bit over 61% of your attk power. A normal obliterate does around 87% of attack power. There isnt much difference there, 20% attk power which is fine considering frost strike is a filler. Now you get a KM proc, and that just boosts obliterate by a lot, with mastery scaling.
Now the issue with frost right now is obliteration. Right now, the spec is getting catered to boost obliteration in actual gameplay. Before, sims for it were unachievable because of how perfect you had to play, and yes obliteration has a higher ceiling than breath in terms of skill to performance. Double KM stacks, was a recommendation from the DK discord community in order to fix obliteration. Increasing Breath cost and damage, was a recommendation from the DK discord community to make breath shorter. Most of the changes were given as an example to fix the spec. The DK dev followed them but didnt hit the mark. Adding an additional target to cleaving strikes just killed frostscythe even more, when they even buffed it in the same notes. Personally i think frostscythe needs a rework. If it worked exactly like improved whirlwind, it would be great for the spec. Change cleaving strikes to work with remorseless winter. Thematically it makes sense that in a frost dks winter, you can hit multiple people. Take the power from cleaving strikes and just give it to remorseless winter. This is something a lot people in the dk discord feel it should be like.
Went off on a tangent but continuing on to why obliteration is the problem of Frost Dk currently.
In all of frosts life, you could never get two main talents at the same time. These talents being Breath of Sindragosa, Obliteration, and Icecap. Now icecap is fine for Breath because it doesnt really change anything. You get pillar back every 40sec or so. The issue arises when you pair obliteration with icecap, but change the spell to where obliteration is based on pillar. Never in obliterations life time has it been tied to pillar. It has always been a 1.5min cd.
Now this being a cd was healthy for the spec. It meant that there were tuning knobs for EVERY talent. This expansion changed that by removing the obliteration cd and just tying it to pillar. This is the core issue of frost not being able to be tuned properly. If obliteration had the 1.5min cd back, or heck give it a 1min cd so people are happy, then the spec would have clear ways in how it can be buffed or nerfed if needed. You could add multipliers to obliteration if it was bad. But everything as a whole would be able to get tuning separately. You buff icecap right now and obliteration gets a massive buff. You buff pillar of frost, and obliteration gets a massive buff. The t29 sets are a great example of this. Simply increasing the dmg of obliterate and the whole set as a whole, was a 15% increase in dmg for obliteration. Now for breath, t29 was barely reaching 6-8% damage increase with the 4piece.
If the dk dev stopped being stubborn, pushing frost into a playstyle nobody wants to play, then the class is just going to lose the faithful players that it has. It’s one of the least played classes in the game. It’s a cleave spec, and it barely competes with others in cleave, as seen on council. Most of the things ive mentioned above, were recommended as feedback during the beta of DF, but of course, blizzard doesnt listen to that anyways.
I’ll just add this. My biggest issue with the spec right now, or dk in general. Is that blizzard insists that we bring great utility. We dont. We have a 30sec death grip on a single mob. A 2min aoe grip, that we use when we want because it grants us rime procs as frost. AMZ and AMS are dps cooldowns that we use at our leisure. Hell AMS/AMZ rp cheese can be nearly 10k in dps increase for breath. We bring nothing that isnt brought by someone else in a more effective way. Give us a version of chaos brand. we are infused with death magic, why cant we get raid buff that increases magic dmg. It makes no sense.
And the first week that we show up on top of the logs, we immediately get a nerf. YET locks have been topping the charts all throughout ptr for 10.1, and have yet to see a nerf when majority of the specs are barely scrapping by 132k or below that