Help with items.

I'm trying to make this:

1. A wooden shield that could be very weak against fire damage.
2. And, for example, a lantern or item that burns or destroys cobwebs or blocks when you right-click them.
3. A block that can be pushed or pulled even in Adventure Mode.
4.  

I saw that mechanics in 1.7.10 mods like Zelda Sword Skills.

And one more but i think is kinda impossible...

an UI or entity with a trade system with more than 2 prices for trades (For example, 3 or more inputs and one output).