You can spend the mana you might otherwise spend in casting spells in pumping it up, and it's almost always a 3/3 when you need it to be
And who doesnt love a free spell that spits out value every turn
Alandras ability to close the game out edges it a few spots ahead
Cards List "A new day dawns for Avishkar, and we shall draw our power from its light."M 0191 DFT First strike, trample When this creature enters, you may search your library for up to two artifact, creature, and/or enchantment cards with mana value 1 or less, reveal them, put them into your hand, then shuffle
Plus, with flying, it can chip in for damage while fueling your next explosive turn
Six mana, and you can bring back all creature cards from your graveyard to the battlefield, and they stick the landing and aren't exiled at the end of the turn, although it is exiled so it's a one-of in Commander and other Highlander formats