(I tried posting this on Smogon forums but they were mean to me so here it is)
Move 1: Ice Beam / Blizzard
Move 2: Endure
Move 3: Memento
Move 4: Destiny Bond
Item: Custap Berry
Ability: Vital Spirit / Insomnia
Nature: Modest
EVs: 252 HP / 200 Def / 56 SpA
Ice Beam or Blizzard is for when you're going up against a Pokemon that you know isn't going to immediately kill Delibird, or when the Pokemon you're going against a Pokemon that is Burned, (specifically a Physical Attacker that is burned) Paralyzed, Asleep or Frozen. It's safer if you go against a stronger Pokemon with Delibird if they're specifically Frozen or Asleep, but it's still risky, so you need to be certain that you won't faint to the Pokemon you're going against if you're planning on doing direct damage with Deibird. The rest of the moves of this set is what makes this set fun. Endure is used to guarantee that Delibird won't faint to whatever it's going against, and it's a good substitution for a Focus Sash. It's actually better than Focus Sash, because if you land on an entry hazard, get hit with a weak move that wouldn't KO Delibird, etc, Focus Sash would be gone, and Delibird would just be a waste of a spot in your team, and Focus Band isn't wasted when you get slightly damaged, but do you really want to risk that? Of course not, so Endure is the best thing to use for this strat. Now, Memento would seem like a useless move for this set because you have Destiny Bond, so why lower the opposing Pokemon's attacking stats instead of killing said Pokemon? Well, say you're going against a Pokemon that doesn't have any set up moves, obviously the person you're going against will want to switch said Pokemon, so on the turn he uses to switch Pokemon, you can set up with Swords Dance, Nasty Plot, Stealth Rock, Spikes, Toxic Spikes, Trick Room, etc. And Destiny Bond is obviously for killing a certain Pokemon that can threaten your team, or if the Pokemon is just annoying. (sorry for the wall of text)
