Planeswalkers

[Anoobass]

It does, but damage removes loyalty and when loyalty is 0 state based moves a PW to the graveyard.

[Kaleo42]

Would {safe passage} work?

Nope, a Planeswalker is neither "you" nor a creature you control. It is it's own permanent type.

So {fog} and {boros charm} do right?

What does the charm do for you? Sure it saves them from {bramble crush} effects but it has no interaction with damage.

Oh so it doesn't make planeswalkers indestructible?

It does but indestructible has nothing to do with damage. Creatures cant be destroyed via lethal damage but walkers still remove loyalty counters via damage.

[Blazingblevins]

So with {safe passage} they {mizzum mortars} me with or without overloaded, and lightning strike me. I can then in response cast {safe passage} and be ok, and everything is prevented. Or do I have to cast it before?

[Kaleo42]

So with {safe passage} they {mizzum mortars} me with or without overloaded, and lightning strike me. I can then in response cast {safe passage} and be ok, and everything is prevented. Or do I have to cast it before?

It has to resolve before the damage. The casting order does not matter. You can do it long before the damage on that turn or in response to the damage source (spell or ability).

[Blazingblevins]

Well when I read {safe passage} in rules, it says damage done before won't be prevented. So how does it actually prevent it. I mean you really wouldn't want to cast it before , because your opponent won't attack or try to do damage

[Kaleo42]

Opponent casts {lighting strike}
In response you cast {safe passage}
Safe passage resolves
Then strike resolves but damage is prevented.

[Blazingblevins]

So the same thing can be said for {riot control}

[Gorzo]

Just in case it helps clarify things, here's the actual rule about redirecting from a player to their walker:

306.7.: If noncombat damage would be dealt to a player by a source controlled by an opponent, that opponent may have that source deal that damage to a planeswalker the first player controls instead. This is a redirection effect (see rule 614.9) and is subject to the normal rules for ordering replacement effects (see rule 616). The opponent chooses whether to redirect the damage as the redirection effect is applied.

[particle]

and they can't target you or your 'walker with {mizzium mortars} since it only hits creatures.