What you need is Reckless
Sideboards are used in Traditional formats, which are best-of-three matches instead of single games
Brigid, Hero of Kinsbaile Catti-brie of Mithral Hall Daryl, Hunter of Walkers Finneas, Ace Archer G'raha Tia Halana, Kessig Ranger Hallar, the Firefletcher Hawkeye, Avenging Archer Hawkeye, Bowslinger Hawkeye, Clint Barton Hawkeye, Master Marksman Hawkeye, Trick Shot Hawkeye, Young Avenger Lady Caleria Legolas Greenleaf Legolas, Counter of Kills Legolas, Master Archer Ohabi Caleria Rashka the Slayer Tetsuo Umezawa Tor Wauki Tor Wauki the Younger
This deck is more unfocused than its Hero-centric, Sapphire/Steel counterpart, but with a little work, it won't be difficult to get it into fighting shape
In that case, Alela, Cunning Conqueror's last ability triggers once for each player that Faeries you control dealt combat damage to, regardless of how many creatures were dealing that damage
Its not often Magic: The Gatherings story feels fully palpable in the way cards are designed