Seel

Lick + Aqua Tail & Icy Wind

Lick has the advantage of solid overall stats with 3 DPT (Damage per Turn), and 3 EPT (Energy per Turn) and great neutral coverage that is also Super Effective against key Pokemon of the Little Cup meta. Aqua Tail (50 Power/35 Energy) provides very fast moves that can be surprisingly effective. And finally, Icy Wind (60 Power/45 Energy) has outstanding typing synergy with Aqua Tail and can even punish shielding opponents thanks to its -1 Attack debuff.

Ice Shard + Aqua Tail & Icy Wind 

Ice Shard has stronger stats than Lick, with 3 EPT and 3.33 DPT, allowing for an even spammier moveset. This also provides different coverage that can be just as important  depending on what your team needs to counter.

Water Gun* + Aqua Tail & Icy Wind 

While Water-weak Pokemon aren't extremely common, Water Gun's 3 DPT and 3 EPT is actually stronger than Lick in neutral scenarios thanks to having STAB. The random Pokemon that are actually weak to Fire in the Little Cup also tend to be surprisingly disruptive, so having Water Gun can be very valuable depending on your team comp.