The 2-drop 3/1 can tap for Red mana, and can sac for three mana to shoot a dork for six damage
If you've got even a semi-wide board, this could be a seven-card swing - especially if you had less than four cards in hand to begin with
Larry Niven is the science fiction author who first coined the term mana, referring to a magical resource drawn from the land around you
A: It's kind of a weird thing to give up, to be honest, but if you're familiar with the old card Rock Jockey, it'll help
This kind of ramp only finds a home in control or combo decks as agro decks tend to prefer making the more vulnerable mana critter on turn one
Robin Hood, Unrivaled Archer has a resource cost of 6, attack power of 4 and a defense raiting of 4