What else does...?

[Noblellama]

What other equipment and the like has the "free attachment" clause like {Hero's Blade} {Stormrider's Rig} and {Deathrender}?

Yes this is going to be a very nasty legend packed deck.

I'm also looking for ideas on colors and suggestions of who to put in it.

[adventus]

{Nim Deathmantle} kinda sorta.  If they killed your guy, you could bring him back and attach everything to him for {4}.

[Mr_Fahrenheit]

One of the kor creatures .... i want to say {kor skyfisher}.... lets see where that link takes us

[Splicer]

One of the kor creatures .... i want to say {kor skyfisher}.... lets see where that link takes us

{Stoneforge Mystic}?

[rarehuntertay]

 {Bruna, Light of Alabaster}???

[Mr_Fahrenheit]

One of the kor creatures .... i want to say {kor skyfisher}.... lets see where that link takes us

{Stoneforge Mystic}?

Nope. Lets try again

{Kor outfitter} ... ?

[Mr_Fahrenheit]

One of the kor creatures .... i want to say {kor skyfisher}.... lets see where that link takes us

{Stoneforge Mystic}?

Nope. Lets try again

{Kor outfitter} ... ?

Bingo!

[Splicer]

In that respect,
{Brass Squire}.

[Remillo]

There's an entire cycle from Morningtide that attaches if the creature meets a creature type requirement. Let's see if I can remember them off the top of my head:
{Obisidian Battleaxe}
{Thornbite Staff}
{Veterans Armaments}
{Diviner's Wand}
And then some Rogue Cloak.

[Thetrufflehunter]

There's an entire cycle from Morningtide that attaches if the creature meets a creature type requirement. Let's see if I can remember them off the top of my head:
{Obisidian Battleaxe}
{Thornbite Staff}
{Veterans Armaments}
{Diviner's Wand}
And then some Rogue Cloak.

I'm impressed in both your memory and the dope cards.

[Remillo]

There's an entire cycle from Morningtide that attaches if the creature meets a creature type requirement. Let's see if I can remember them off the top of my head:
{Obisidian Battleaxe}
{Thornbite Staff}
{Veterans Armaments}
{Diviner's Wand}
And then some Rogue Cloak.

I'm impressed in both your memory and the dope cards.

{Cloak and Dagger} is the last one!

[Coolie2]

Equipment with "Living Weapon" technically counts

[Kaylesh]

There is  {Puresteel Paladin}...
Makes any equipment fit your description as long as you have three.

[DirtyMustachio]

Um it's not auto equip but it's free to equip... And I feel like since it hasn't been tagged it really should be

{lightning greaves}

Card is nuts

[DirtyMustachio]

thank you
4 of those are going in
probably 2 of that chariot from theros cycle as well

{Chariot of Victory}

Erm well before that
Try

{swiftfoot boots}

{trailblazer boots}

{whispersilk cloak}

Cuz no one likes spot removal