Dragon Cultist Dragon creatures are particularly beefy with a power of 4 to 7 or sometimes higher
Heliod offers a nice win condition with Walking Ballista for mono-white decks
A Boros section composed of only Red and Boros cards, including the Boros commander Depala, Pilot Exemplar
Then theres the Foretell ability, which lets you cast it in preparation for later turns , where you can easily cast it for only one blue mana
Loxi: Lifegain pinger decks could always use another way to get their damage piled up, and this one is cheap and valuable enough that I can totally see throwing it in any decks like Oloro or Athreos (on top of the other Bat cards in this set, of course)
If it's granted double strike, then it'll get two such counters if it can hit a player, making it grow quickly