Hi,
There are definitely some things I like about this list, including the Grunts and the Enlightened Tutor.
If you're worried about Tendrils of Agony, you might appreciate Children of Korlis, a 1/1 for

that sacrifices to gain life equal to the life you've lost this turn. You sacrifice it after each copy of Tendrils has resolved except the first to make it lethal and end up losing usually only 2-6 life overall. It will dramatically improve your Ichorid and Goblins match-up as well.
On a similar note, Icatian Javelineers are a reliable way of dealing with opposing Goblin Welders, Gorilla Shamans, Dark Confidants, and other X/1 creatures.
Mind's Eye or Bottled Cloister would give you a better and less symmetrical draw engine than Anvil of Bogarden. Further, I think you're focusing too much on your opponent's lands with 7 Strip effects, 4 Winter Orbs, 2 Crucibles, and 4 Tangle Wires. If I were playing against you, I would let you have the land advantage and then counter the one or two Null Rods you're likely to see during the course of a game, which you can't recur because of lacking Welders. Something like Devout Witness could give you more options against artifact mana, AEther Vials, and even Oath of Druids and Dragon-animating enchantments.
Good luck,
-Brian