This article looks at what double strike means in the MTG rules and how it works with examples, the best double strike cards, double strike decks, how to play against double strike and common double strike questions
This ones all about the flavor text
Saffgor: This is the most inadequate version of Slicer/Alexios we've seen thus far, and you're going to see Kain given away, and then sat on
It's cheap, swift, and can pinch some powerful spells from your opponents
There might be some combo lines available with a big land creature each turn, but outside of those this seems pretty mediocre unfortunately
U/W Heroic looks and plays out more like a Modern or Legacy deck than a Standard deck, with only twenty lands and almost every card in the decklist costing one or two mana