Well, lets look at the first time this card was Standard-legal
There is now only a limited supply of every Superdrop available for sale, and once theyre sold out, theyre gone
Combined with some great tap abilities like Djinn of Infinite Deceits, Rubinia Soulsinger, and Skyward Eye Prophets, youll generate a threatening board state in no time
All this is great since Elves has all sorts of lord effects to grant bonus +1/+1 to your Elves stats, letting you generate even more mana
While banned cards are completely barred from their respective formats, restricted cards are limited to a single copy in any given deck and sideboard
Rivaz of the Claw Although it's technically a lizard commander, Rivaz of the Claw says dragon in the textbox a lot so thats probably a good sign