There is nothing stopping you from doing the same in countless formats and netting an extra guaranteed card for your trouble
These were called Portal, Portal: Second Age, Portal: Three Kingdoms, and Starter 1999
You can read my round up of the best of them in our 10 Hottest Precon Cards article
The mana cost is actually pretty challenging too in your typical Limited deck, and you really want to get this down before you start gaining life, but doing that will not be easy
Unlike the raw power of an overloaded Vandalblast, which can sometimes cripple a nongreen player whos relying on a couple of mana rocks to function, cycling this Elephant can just pinpoint the problem artifacts and draw you a fresh card, all at instant speed and impossible to counter through most counterspell effects
Squirrel Wrangler can give up lands to make Squirrel tokens or to buff all of your Squirrels, and Scurry Oak spits out a Squirrel token any time it gets a +1/+1 counter