There's no life loss, and the card you tutor for goes straight to your hand - what more could you need?
Then you can get hard to block in Aggro, tokens, or Hate Bears too
How true they are, nobody knows, but its probably happened at least once
As Commander is a format rife with utility artifacts, mana rocks, and Treasure tokens, even within the early turns of a game, a Dockside Extortionist can thrust its controller miles ahead of its opponents in regard to available resources
Spark Doubles additional counter opens the door to various synergies with proliferate and other counter shenanigans
Giving storm to spells without that ability is universally regarded as a powerful effect everything from Lightning Bolt to Giant Growth gets better when you can copy it for no additional cost (minus the other spells youve cast this turn)