Youll need at least 7 mana in your pool before you activate the ability to net positive mana, but youll quickly see how this can get out of hand if it isnt interacted with
You can better appreciate the scope of the games evolution since that first set by reading a how many MTG cards are there overview that catalogs the vast library of cards available today
1 Oran-Rief, the Vastwood
One of my favorite formats of all time combines Five Color, Highlander, and Pauper, into a deck that requires 250 cards, 20 cards of each color, only commons, and no more than one copy per common (other than basic lands)
Its a little better, though, because youll turn any reanimated vehicle into a permanent creature