The Boss Rushes

The Void And Savage Boss Rushes Are Summoned By Using A(n) Envoidened Or Savage Rusher. This Is The Hardest Boss Rush In War Mode. Each Of The Bosses Health, Damage, And Defense Are Based Around Thier Order.)

Pre-Hardmode Bosses
King Slime

Eye Of Cthulhu

Brain Of Cthulhu

Queen Bee

Antlion King

Eater Of Worlds

Harpy Queen

Heart Of Cthulhu

Great Meteorhead

Critterling

Staruid

Pumpkin Griever

Skeletron

Electrodynamics

Turkor, the Corrupted

Wall Of Flesh

Pit King

Hardmode
Queen Slime

Destroyer

Roc

Bio-me

King Bee

Mother Board

Skeletron Prime

Pharaoh

The Twins

Golem

Lepus Prime

Peacekeeper

Plantera

Duke Fishron

Duke Moltron

Ragnarok

Ocram, Lord Of The Failed Machines

Lunatic Cultist

Solar Cultist

Sun God

Earth Lord

Wall Of Steel

War Mode
Mushboom

Growl & Groan

The Pumpkin Lord

Behemoth

Celestial Golem

Skeletron Mech

Desert Dragon, Enagis

Phoenix Overlord

Mechantera

Turkor Prime

The Kraken

Sun Lord

The Executioner

Mind Of The Future

Solar Skeletron

The Sharpener

Omniarbor

The Eradicator

The Triplets

Ocean God, Hydrous

Earth Lord

After That...
If You haven't Defeated The Void King Or Rodrigo In Your World Yet, They Will Say This After Defeating The Earth Lord In The Boss Rush:

Void King: I'm Sorry. You're Going To Have To Fight Me Before Fighting The REAL Me.

Rodrigo: I'm Sorry, Pal, But Ya Gotta Fight Me To Fight Me Here.

Also, If You Aren't In A World With The Alternia Void (For Void King) Or Savage World (For Rodrigo), And Use The Envoidened Or Savage Rusher, Respectively, They Will Say This After Defeating The Moon Lord In the Boss rush:

Void King: The Savage World? I'm Sorry, But I CAN'T Fight You There.

Rodrigo: I Don't Like The Void, The Pits Are Too Scary...

But They've Changed...
The Void King Will Have Much More Frequent Attacks, And Rodrigo Will Do More Damage. There Is More For Our Boy Rod, Though.
 * 1) All 4 Of His Friends Will Spawn In The Second Phase, Instead Of Just One
 * 2) After Knocking Him Down, If You Wait Long Enough, He Will Get Enraged! This Is Really Hard Without Endgame Weapons.

Boss Rush Rank II
There Is Another Rank Unlocked After Defeating The First Rank And The Phantom. These 7 Bosses Will Be Added After The Void King

Spirit Of Flight

Spirit Of Sight

Spirit Of Might

Spirit Of Fright

Spirit Of Light

Spirit Of Night

The Phantom

They Are All Harder Then Thier Original Fights.

Quotes
Void King, After 5 Bosses

"You Aren't Bad, But I'm Better!"

After 10

"Don't Worry, This Is Just CHILD'S Play! The Bosses Will Only Get Harder From Here!!!"

After 15

"OOOOOH THIS WILL BE AMAZING! I CAN'T WAIT TO SEE YOU DIE!!!"

After 20

"HOW ARE YOU NOT DEAD?!?!?!?"

After 25

"I'm Getting Nervous, I Might Have To Fight You... And I Want To See You Die Before You Get To Me!"

After 30

"JUST DIE ALREADY!!!!"

After 40

"Looks Like It's WEAKLING VS WEAKLINGS. A 2v1 Is Always In Favor Of The 2!"

After 50

"I'm Getting Impatient. Go Get Him/Her, Sun Lord!"

After 60 (A.K.A The Earth Lord) And All Requirements To Fight Him Are Met

"Well, You've Made It To Me. Get Ready For The BIGGEST World Of Hurt You've Ever Experienced!"

Phantom After Defeating The Void King

???: "Good Job. Now Keep Fighting. We're Not Done Yet."

Phantom After Defeating The Spirit Of Light.

"You've Found Me Again, And I'M Ready This Time. Let's Fight."

Achievements
Defeating Them First: Complete The Boss Rush Mark I

Phantom Robber: Complete The Boss Rush Mark II