Widow Claw Tarsus

You can have multiple instances of arcane barrier.

You can only prevent one arcane damage per arcane barrier per source.

You can prevent arcane damage you do to yourself.

Players cannot respond to the prevention.

To fully prevent a card dealing 3 arcane damage, you would require 3 arcane barrier and 3 resources to prevent it. To fully prevent 3 Runechant tokens (3 instances of 1 damage). You would require 1 arcane barrier and 3 resources to prevent it.

Preventing arcane damage does not destroy the equipment with arcane barrier (unless otherwise specified).

Arcane barrier is a replacement effect. It does not use the chain. Players cannot respond to the prevention.

Each source of arcane barrier can replace damage 1 time per source. To fully prevent a card dealing 3 arcane damage, you would require arcane barrier 3 and 3 resources to prevent it. To fully prevent 3 Runechant tokens (3 instances of 1 damage). You would require arcane barrier 1 and 3 resources to prevent it.

If a card has Arcane Barrier 2, you must pay the full two resources even if it only prevents one damage. You cannot choose to pay one resource to prevent one damage.

You can have multiple instances of arcane barrier, for example Nullrune Hood, Nullrune Cloak, and Nullrune Gloves.

Arcane barrier can be used every time you would be dealt arcane damage. It’s not limited to once per turn.

Each instance of arcane barrier you control can be used 1 time only, each time a source would deal arcane damage to you. For example if a source would deal 5 arcane damage to you, and you control two cards with arcane barrier 1, you will in total be able to prevent 2 arcane damage this source would deal to you.

To fully prevent a card dealing 3 arcane damage, you would require 3 arcane barrier and 3 resources to prevent it. To fully prevent the arcane damage from 3 Runechant tokens (3 instances of 1 damage), you would require 1 arcane barrier and 3 resources to prevent it.

A equipment with arcane barrier does not move to the chain when arcane barrier is used.

You can prevent arcane damage you would deal to yourself.

Players cannot respond to the prevention. Arcane barrier is a replacement effect, not an activated or triggered ability.

To fully prevent a card dealing 3 arcane damage, you would require 3 arcane barrier and 3 resources to prevent it. To fully prevent 3 runechant tokens (3 instances of 1 damage from difference sources). You would require 1 arcane barrier and 3 resources to prevent it.

Spellvoid does not go on the chain as it is not a trigger. It is a replacement effect. There is no time to respond after the decision to destroy the card and prevent that damage.

Spellvoid is optional. You choose whether to use spellvoid or not at the time the arcane damage resolves.

If a card has Spellvoid 2 but only prevents 1 arcane damage, there will not be a leftover prevention shield. Note: It can only defend arcane damage from a single source, Spellvoid 2 cannot prevent one arcane damage each from two different sources.

Spellvoid does not go on the chain as it is not a trigger. It is a replacement effect. There is no opportunity to respond after the decision to destroy the card and prevent that damage.

If a card dealing arcane damage is fully prevented by spellvoid (Or in conjunction with other preventions) it would not be considered to have dealt arcane damage and would not trigger effects that rely on arcane damage being dealt.