The ideal scenario for casting Deadly Tempest is during the late game when life totals are low and the battlefield is clogged up with loads of creatures
Haste and a hoard (or at least a handful of treasures) put it close to a Dawnsire, Sunstar Dreadnought but at least it can aim for planeswalkers or players
One notable card is "Ruffian Railcar", as it can be searched via "Revolving Switchyard" or "Urgent Schedule"
(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
If your Commander deck has two commanders, you can only include cards whose own color identities are also found in your commanders' combined color identities
When this card declares an attack on an opponent's monster: You can change the battle position of that opponent's monster