In blue you're probably sacrificing Food or Clues or Treasures, which is fine
Things that count as triggered abilities are any card abilities starting with when, whenever, or at. These include enter-the-battlefield effects, death triggers, combat damage triggers, and upkeep effects
Armadillo Cloak Invasion draft had five two-color combinations, and green-white was essentially Armadillo Cloak
Kira, Great Glass-Spinner 2.5 This is another one of those surprise cards that was dug up one day to plug a hole in a deck and impressed so much she has not left the A cube since
This is a nice trick -- it blanks removal, can often win combat, and has the upside of sending something to the sky to swing in for lethal -- or block a dragon out of nowhere
Ill-prepared, low on food, it was a harrowing experience