An ability that triggers "whenever you airbend" triggers after the process described by the airbend keyword action is complete, even if some or all of the actions were impossible

There are four boxes, and they are as follows: MTG x Final Fantasy - Garland at the Chaos Shrine Garland, Royal Kidnapper (Blue/Black) The Destined Warrior (White/Blue/Black) The Destined White Mage (White) Chaos Shrine's Black Crystal (Black) The Destined Thief (Blue) The Destined Black Mage (Black) MTG x Final Fantasy 8 - Children of Fate Edea, Possessed Sorcerer (Blue/Black/Red) Fated Clash (White) Rinoa, Angel Wing (White) Seifer, Balamb Rival (Black/Red) Duelist's Flame (Red) Squall, Gunblade Duelist (Red/White/Black) MTG x Final Fantasy 9 - The Siege of Alexandria Brilliant Wings (White) Judgment of Alexander (White) Mega Flare (Red) Amarant Coral (Red/Green) Vivi's Persistence (Red) Search for Dagger (White) MTG x Final Fantasy 15 - Camp Comrades Noctis, Heir Apparent (White/Blue/Black) Fishing Gear (Colorless) Chocobo Camp (Green) Flash Photography (Blue) Campsite Cuisine (Green) Warrior's Resolve (White) Not every box allows players to use each card it comes with in the same MTG Commander deck, as one of the format's core rules is to use cards within the commander's color identity

Read more: MTG Best Tribal Commanders
Demand is the more fickle counterpart, in that it's always changing to some degree, and it really depends on the card
Note that colorless topdeck manipulation like Scroll Rack and Sensei's Divining Top help to get the most from Cait Sith