This is my current 75, let me know if you think this boarding plan is "right" versus Delver tempo decks:
Maindeck - 60
1 Dryad Arbor
1 Gaddock Teeg
1 Sigarda, Host of Herons
1 Scryb Ranger
2 Scavenging Ooze
2 Qasali Pridemage
4 Noble Hierarch
4 Mother of Runes
4 Thalia, Guardian of Thraben
4 Knight of the Reliquary
1 Elspeth, Knight-Errant
2 Umezawa’s Jitte
2 Sylvan Library
4 Green Sun’s Zenith
1 Path to Exile
4 Swords to Plowshares
1 Maze of Ith
1 Karakas
1 Gaea's Cradle
1 Plains
2 Forest
2 Misty Rainforest
2 Cavern of Souls
4 Wasteland
4 Savannah
4 Windswept Heath
Sideboard - 15
1 Gaddock Teeg
1 Linvala, Keeper of Silence
1 Thrun, the Last Troll
1 Krosan Grip
1 Life from the Loam
1 Enlightened Tutor
1 Oblivion Ring
1 Pithing Needle
1 Ethersworn Canonist
1 Dueling Grounds
2 Choke
3 Rest in Peace
I usually board -2 Pridemage, -1 Gaddock Teeg (only really stop Force of Will versus them, and if they boarded out Force of Will, then Teeg is truly just a Grizzly Bear), -1 Sigarda, -1 Ranger, and bring in +1 Enlightened Tutor, +2 Rest in Peace, +1 Oblivion Ring, +1 Life from the Loam. I suppose I could go -1 Elspeth, but then I'd want to bring in +1 Linvala (doesn't die to Bolt, doesn't die to Abrupt Decay, blocks Delver, blocks Mongoose, blocks Clique if they boarded it in, turns off their Ooze if they boarded it in).
My sideboard is still a work in progress (Dueling Grounds is an experiment), but I feel pretty good about the maindeck. I've found Thalia is a BEATING versus Delver tempo decks, combo, Esperblade, and other random stuff, so I really don't ever plan on running less than 4 between my 75.

