Silver & Withers is a mod that was inspired partly with The Witcher games and partly with my ill imagination.

Silver Items

Each tool has bonus damage against undead mobs.

Note: silver tools are similar to gold tools, but last longer.

New mobs

Some new variants of wither skeleton mobs is added (including wither skeleton horse).

Midnight ghost is a new mob that drops moon essence that is useful in crafts and accelerates transmutations. Ocassionally drops silver ingots.
They spawn in swamp biome only.

New armor

Adds new type of material Shibuichi that is crafted with copper, silver and a bit of magic.

With this alloy you can craft new shibuichi armor and reinforce a stick to make reinforced handle for even better silver sword.

New potions

Three new potions with two new effects.

With Silver water you can start Exorcism rite. During the rite all undead mobs gain damage and drop silver and gold nuggets in all directions.

New "totem"

When Sharkat is in offhand it grants wither resistance for 10 seconds. Limited uses.

Transmuter

Transmuter is new functional block that lets you convert gold into silver (doesn't work with blocks).
The process can be accelerated with moon essence.

Wither ring

New legendary item that can blow up every creature around you.

It consumes wither essence to work.

Note: wither skull can be crushed in crafting table to obtain wither dust.

Supports english, russian, spanish and portuguese languages. You can offer your own translation.
If you find any bugs please let me know. So much more is planned to add in future. See you!