This is a reasonable rate, and if youre also using Cartouche of Zeal, you can make a real engine of it
You've also got a few sources of life gain (see Mask of Griselbrand, Basilisk Collar, and Blood Artist), and a few ways to wipe the board if things get out of hand (see Decree of Pain and Blasphemous Act)
BPhillipYork: It's a mana dork that also mana fixes for your commander, so it just makes any green that wants to ramp out creatures smoother and more consistent, and it makes your commander uncounterable or some big legendary spells like Karn's Temporal Sundering or, Planeswalkers, which will get to hit the board then do their thing without a chance for interaction
This means having the highest possible chance of making a good, aggressive play on turn one, and also a high chance of playing two additional one-mana spells on turn two
Please note that since this is a Clue, you can sac it too for mana and make that copy as well