A big batch of item/upgrade suggestions, sorry if the formatting is horrendous.

[ShockMicro]

--Items--

• Trident: 2 emeralds (6 emeralds for Loyalty III)
• Crossbow: 24 gold (4 emeralds for Quick Charge III and Multishot)
• Shield: 10 gold
• Cobwebs: 8 gold for 4
• Fishing Rod: 8 gold
• Lava Bucket: 8 gold
• Ladders: 4 gold for 8
• Scaffolding: 6 gold for 8
• Rockets: 4 gold for 8, explodes with team color

--Grouped Items--

Arrow Upgrades (Must have arrows in inventory, upgrades 8 at a time.):

• - Spectral: 2 emeralds
• - Poison: 3 emeralds
• - Slowness: 3 emeralds

Potions:

• - Slow falling: 4 emeralds, lasts 10 seconds
• - Invisibility: 4 emeralds, lasts 15 seconds
• - Leaping 5: 4 emeralds, lasts 30 seconds
• - Speed 3: 4 emeralds, lasts 30 seconds
• - Strength 2: 4 emeralds, lasts 15 seconds
• - Harming 2: 4 emeralds, lingering

--Team Upgrades--

• Haste: 4 diamonds for Level I, 8 diamonds for Level II (SuperCoder79 edit: The way we implemented it is 3 diamonds for haste 2, as that is closer to vanilla bedwars's speed when mining obsidian with a diamond pick)
• Sharpness: 4 diamonds, Level I only.
• Power: 4 diamonds for Level I, increases by 1.5x for each level until Level V.
• Piercing: 4 diamonds for Level I, increases by 1.5x for each level until Level IV.
• Channeling: 8 diamonds, starts a thunderstorm when bought the first time.
• Shulkers: 8 diamonds, only attack enemies, colored to the user’s team.
• Netherite: 8 diamonds per player, permanently upgrades all diamond tools or armor to Netherite.

--Deconfirmed--
Elytra: Too overpowered, you can fly over the entire map even without rockets.
Sharpness (past Level I), probably too OP.

[ShockMicro]

This issue has moved over to the BedWars/AnchorWars Design Doc.
Check it here: https://docs.google.com/document/d/1-r-O_gii4k619tr6PU7fr39pMDWiV7KZwMP4k62boqc/edit#