Klefki or Murkrow for Prankster set up?

Question

For a team I want to build.

Answer 1

Klefki. It has a better move set for the "annoying staller" role, which works well with prankster. Murkrow is generally used as an attacker, so you might have the benefit of surprise. Here is a good set for each.

Klefki @ Leftovers
EVs: 248 HP / 8 SpAtk / 252 SpD
Calm Nature
Ability: Prankster
- Calm Mind
- Thunder Wave
- Heal Block
- Dazzling Gleam

Murkrow@ Eviolite
EVs: 248 D, 248 SpD, 12 HP
Careful Nature
Ability: Prankster
-Toxic
-Sucker Punch
-Roost/Feather Dance
-Haze

Comments

maybe Air balloon on Kelfki instead of leftovers

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What is Heal Block for? Obviously it's to prevent the opponent from healing, but what use does it have. Why not Spikes?

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FeatherDance is questionable too. Roost is much more useful, especially under Prankster.