Idea for a retrace deck

Several things I found interesting for a retrace deck:
Retrace cards (duh), mainly red/green eg.:
Calll the Skybreaker
Flame Jab
Waves of Agression
Monstrify
Savage Conception
Worm Harvest
Spitting Image

Possibly more lands than in a ususal deck, maybe 28 or so.
Some of these lands are in form of karoos, so that you can tap a land for mana, bounce it when you play a karoo (essentially increasing its productivity by 1 next turn), then discard it to retrace.

Life from the Loam adds a mice touch, returning lands from your graveyard to retrace, and dredging to put retrace spells in your graveyard.

Scouting Trek is excellent late-game, as it fetches all your lands, and grants you a retrace spell every turn. (Worm Harvest)

Creakwood Liege adds a nice game-finisher, especially with Worm Harvest (once again).

Groundskeeper is a definite must in this deck.

Cartographer can also bring back lands, although not as well as groundskeepers or life from the loam.

Ok, too much stuff. This looks good:

LANDS (24)
4 Golgari Rot Farm
4 Gruul Turf
10 Forest
3 Mountain
3 Swamp

CREATURES(6)
2 Creakwood Liege
4 Groundskeeper

OTHER(30)
4 Life from the Loam
2 Scouting Trek
4 Worm Harvest
4 Savage Conception
4 Call the Skybreaker
4 Spitting Image
4 Waves of Agression
4 Flame Jab