Seeing how easy it is for white players to gain life in the current meta, Ajani can very quickly hit ten loyalty counters and be a real problem for players to deal with
Then, if Squall gets into the red zone itself, the potential threat of two free permanents is enough to make it so that your opponent either answers it or falls too far behind
Innistrad Remastered Collector Boosters The Innistrad Remastered collector booster brings back the fan-favorite gothic horror setting
As long as you're in a format where you can play Fetchlands to fuel your graveyard, it's essentially an upgraded Llanowar Elves that can heal you and damage your opponents without having to go through their creatures
It being later-than-turn-3 play also fits more naturally into both strategies I mention
Card Name Mana Cost Type Sorcery Rarity Mythic Rare rules Text Until end of turn, any time you could activate a mana ability, you may pay 1 life