Quicksilver's wand gives you speed when you hold it 

Hulks Fist Gives Strength and can be held in the off-hand

Iron man's gloves shoot a small explosion

Thor's Hammer Gives jump boost. Also if you put it in the crafting table again you can throw it 

Captain America's Shield Gives you Resistance when holding   

Spider man's Web shooter teleports you like an ender pearl 

The Tesseract is used to craft other Items

Loki's Wand gives you slow falling and extra hearts 

The Wakanda spear 

Black panthers claws

Wolverine claws give regen and speed but less hearts 

Deadpool's Katana gives Golden Hearts 

New Black Panther Armor

Iron man helmet gives Jump Boost and Slowfalling

Shang-Chi’s Rings gives Jump Boost and Resistance

Night Crawlers Teleport is a infinite teleport 

Psylocke's Sword is like a Netherite sword. It is also dropped by Sentinel. 

Black Widows Batons give Jump Boost and Resistance

Doctor Strange Duplicate makes a Doctor Strange to fight for you

Star Lord's gun shoots far

Katy’s Bow Gives weakness to its enemy

Thanos Can be spawned like this:

Thanos Drops the infinity gauntlet that does special things

The wakanda warrior can be spawned with this

They Drop vibranium that can be used for crafting

Dr Doom is spawned with 

Dr doom spawns minions to fight for him 

He Drops a sword and Doom army that makes doom minions on your side he also has a chance to drop his spawner again. 

Green Goblin is spawned like this

He Throws gobblin bombs trying to expload you.

Sentinel is Spawned like this

Sentinel Shoots Lasers at you and breaks trees around him.

He Drops a laser gun

Red Skull is Crafted like this 

He Gives Slowness when you get hit, he drops a red skull

Venom is Spawned like this 

He drops 

which teleports you to your enemy and gives them slowness

Emma Frost is spawned like this

She hits with a sword and snow ball and drops a freeze power

Criminals and Crime Bosses spawn at night and try to kill you

They Drop Pistols and Bats

Juggernaut is spawned like this

He Drops his fist Cuffs when killed. 

KingPin is Spawned like this 

He shoots with his cane and drops it when killed

Moon Knight’s Helmet gives Resistance and Strength 

Shoot People out of your eyes with Cyclops’s Glasses

The Necro Sword gives hunger but does a lot of damage

Ant Man's Suit gives Jump Boost and Speed

Groots Shield is a better shield

Rockets Jetpack gives Jump Boost and slowfalling