Does a single delver trigger this in full?

I finally figured out which colors I should run in Enchantress

I personally thought of Goblin Welder, Goblin Engineer, and the painter grindstone combos. It would probably need to be a RWB deck and run cardslike Ethersworn Cannonist and Duress efx. But this card would be most beneficial in a list like that imo.

What's the average math on Tolarian Winds?

I am horrible at timing rules, how does this work with Chain of Mephistopheles? If good, seems great in a URB Dack/Chains lock control list. If not, ignore.

Not to mention Landstill still runs Mana Drain. Even main phase draw a card for two, get a 4/4 flyer off Drain Mana, cast another Standstill is a decent play. And the obvious blue vs white thing with Force(s).

https://www.magicspoiler.com/mtg-spoiler/rielle-the-versed/

If someone can get the pic, please add, thanks.

1UR
Legendary Human
0/3

~ gets +1/+0 for each instant and sorcery in your graveyard

Whenever you discard one or more cards for the first time in a turn, draw that many cards.

Seems interesting enough to try with dack fayden, or Survival/Bazaar lists if they can fit it?

This counts all lands in the battlefield, including opponents. This could be clutch in a Factory War, or just stealing a few draws off an opponents library/bazaar. A welder deck would (viably) get double utility off of Dredge/Workshop opponents out of this.

Yeah, first thing that came to mind. Seems brutal.

Are there any lands with odd costs to activate for something decent that this overrides? Like some land that's "RRGGWW, tap: Make a stupid big dino token"