One commander deck of 100 cards would be in the $1 per card range, so a full deck would cost $100, or maybe a little more if you toss in some tokens
Its also yet another card that can be abused with Cosmic Intervention to get multiple uses and find up to three of your best lands if you have mana up when a wipe comes down
(Four or more depending on how you count Ardenn, Intrepid Archaeologist and/or Rograkh, Son of Rohgahh!) Its funny that it took 16 years to get a Boros Equipment commander, and then WotC proceeded to turn on the firehose
The ratios here is okay: we have lower than average mana sources but the deck has an aggressive curve, and there are 2 notable ramp bombs Manaweft Sliver and Gemhide Sliver
Card draw is fantastic as it gives you plenty of spells and the chance to hit your land drops
This doesn't change her attitude in combat in any way : she deals damage in the first combat damage step just as all other creatures with First or Double strike alone, then deals damage in the second combat damage step provided she still has Double strike