Pikachu (SSB)/Up tilt
Pikachu swings its tail upwards for 9-11% damage. While not superior to Kirby's up tilt due to its somewhat high ending lag, it is an extremely useful move for combos and one of Pikachu's great combo starters. Pikachu can juggle the opponent many times with this move, from low percentages up until mid or mid-high percentages (depending on who the opponent is), in addition of it being versatile as it can be followed up by virtually any move it wants (usually another up tilt for shield pressure, a grab, or a up smash, possibly followed by a Thunderspike at high percentages).
Overall, one of Pikachu's best moves due to its said combo ability, some range, and a large disjointed hitbox.