What are all possible effects, and how they function?

First: Sorry, this question will always come back on top, it's gonna be edited a few time to put in more and more details.

Damage Boost

• Tier 1 - +20%
• Tier 2 - +30%
• Tier 3 - +50%

Armor Boost

• Tier 1 - +4 armor (1 hearts)
• Tier 2 - +12 armor (3 hearts)
• Tier 3 - +24 armor (6 hearts)

Heat and Cold reduction:

• 2 tiers - 1 tier gives a little bit of protection, 2nd tier is needed for extreme environments (top of mountains or middle of desert). Does not count for catching fire. (Goron mountain)

Fire protection:

• 2 tiers, needed for how high up death mountain you are. You wont catch fire close to lava.

Guardian Protection:

• 3 tiers, effect unknown, probably Armor Boost against Guardians

Ancient Proficiency:

• 1 tier, grants +80% damage bonus when using Guardian or Ancient weapons

Sneak +:

• 3 tiers, each tier reduces the distance at which ennemies can detect/spot you

Speed +:

• 3 tiers, Boost movement speed. Amounts unknown, but seems glider/climb speed is unaffected.

Climb Speed +:

• 3 tiers, Boost climb speed. Amounts unknown.

Lightning Protection

• 1 tier, grants immunity to Lightning, as well as ignoring the shock effects of electric attacks (but not the damage). It prevents the stun and weapon drops. [Thanks SGR!]

Lightning Resistance

• todo

Swim Speed Up

• X Tiers, makes you swim faster.

Sand/Snow movement

• 1 tier, lets you move as fast as on regular land in snow/sand