I’ll touch bases with the Batrider later. Meanwhile, I want to focus some attention on an “old” hero Razor. The frog has totally revamped him it’s not even remotely similar to the old Razor anymore. I’d call it a new hero. To say that the frog only added 2 new heroes is quite misleading; if anything Razor is the 3rd new hero.
But being given a new lease of life, dare we say that Razor has the punch or not? It’s up to us to find out.
Old Razor aka Lightning Revenant was one of the most favoured heroes in pub games, being the de facto ‘noob’-friendly hero. If anyone new to Dota were to start learning the intricacies of the game, usually the hero he would be pointed to is Razor (or Dwarven Sniper). However, his less-than-impressive skills did not manage to last him beyond 6.48b leagues.

6.59 razor
To prop up Razor’s popularity with leaguers once again, the frog changed him in the 6.60 map. To compensate for Razor’s more mana-intensive skills, he buffed the intelligence gain to 2.2. Note that the storyline does not quite fit the new Razor (lol) - you’ll see why in a jiffy.

6.60 razor
The first spell Plasma Field in essence works similarly to Shiva’s Guard’s Arctic Blast - a circle of electric blobs emit out of Razor and return back to him again. The -tips command seem to suggest that this skill be maxed first. I would agree too, because AoE damage is always best leveled ASAP.

The second absorbs damage from a single enemy hero, but for the absorption to continue Razor must maintain a minimum proximity of sorts . Once again, I agree with the tooltips in -tips that this skill is best accompanied with Unstable Current to achieve the theoretical best effect.

Unstable Current retains half of the corresponding 6.59 skill - the movespeed. The other part which is new makes Razor a less favorable target for target spells, or so it’s supposed to be.

The ultimate is what I’d like very much. Basically a storm cloud is conjured above Razor which attacks the least healthy target (creep or hero) in the vicinity. The cloud cannot be stopped unless Razor himself dies, so the first time I came across the skill I was quite wowed by it.

Like Static Link this spell works best with Unstable Current too, and is most devastating when a lot of AoE damage is pumped into the area. The storm cloud then seeks the hero (hopefully) with least HP and smashes balls zaps it repeatedly to oblivion. This is when Plasma Field comes into play, as it should be able to remove some enemy creeps from the battle and make good targets even easier to kill. The intended combo that is to be used on 6.60 Razor would be:
Plasma Field (from a range) -> Eye of the Storm (within melee distance) -> Static Link (maintaining the required distance)
Having being critical of the frog for some time, I’d like to say a moderately big thank you for making a hero even better than before. Personally I feel that this remake of Razor will cause even more beginners to like him, especially those who have started to understand his skill synergy a bit.
As for leagues, it remains to be seen - Razor’s old weaknesses - lack of disable and not that much AoE - is still inherent, and Razor may or may not be so favoured depending on the current league trend. As a personal note, despite my constantly relating stuff to leaguers I do not believe that the trends they set may be correct all the time.
According to the tips provided by -tips, the best item approach for Razor is to mass both HP and damage, which I once again agree. As for skill, the approach would be max Plasma Field first, then Unstable Current, then Static Link, while leveling Eye of the Storm whenever possible. That storm cloud is a killer I tell you.
Best allies would be those who enhance Razor’s skill capabilities the most. I would say Dark Seer, Ogre Magi and Omniknight would be the most helpful, followed generally by most stun and slow heroes.
But the list is not exhaustive. Perhaps you can contribute your own ideas about the new Razor as well, in the comment section.