1 I can't ever remember playing Barrenton Cragtreads, Glaciers, Hot Fix, Righteous Authority, and The Grand Calcutron
Tempo decks are sort of like aggro decks with a big control element
Multi-type cards are a major boon here, when applicable
It's cheap and splashable so it can easily slot into any Blue deck, but being an enchantment makes it particularly juicy in Enchantress decks like Zur the Enchanter and Tuvasa the Sunlit, and in Blind Seer decks which run cards like Glamerdye so you can change Insight to trigger off whatever the most popular color is that your opponents are running
This is a five-mana white enchantment that reads: If one or more creature tokens would be created under your control, that many 4/4 white Angel creature tokens with Flying and Vigilance are created instead. Basically, if you were going to make a 1/1 Goblin token, for example, you would instead make a 4/4 angel with Flying and Vigilance