Mono-White Aggro goes wide with cheap creatures like Thraben Inspector and Novice Inspector, so Palace Sentinels gives us a durable 2/4 blocker that also grants monarch for extra cards in a grindy race. Electrickery, overloaded, sweeps the 1/1 Bird tokens from Battle Screech and the Spirit tokens from Fortress Kin-Guard. It won't kill their 1/2 bodies, so it's best when they've flooded the board with tokens. We trim a Melded Moxite and the Makeshift Munitions since this matchup wants durable blockers and card advantage more than sacrifice-based value engines against their steady stream of small bodies. Pyroblast stays in the sideboard because their deck has no blue cards for it to hit.