Card idea: Trophy: Armor of Goliath and Trophy: Ainkurn Sword

I wanted to create combat-oriented trophies. Since they're trophies, they can be more powerful than regular equipments, but I made them non-usable by "unworthy" minions.
They can still be destroyed or stolen though.

Name: Trophy: Armor of Goliath
Cardtype: Master
Master. Trophy.
When this card is moved to a vampire, it becomes an unique equipment that can be used only by that vampire. Each strike or damaging effect made against bearer during combat inflicts 1 less damage.

The wording is the same as Nephandus', except it works also against environmental damage.

Name: Trophy: Ainkurn Sword
Cardtype: Master
Master. Trophy.
When this card is moved to a vampire, it becomes an unique cold iron melee weapon (equipment) that can be used only by that vampire and that does strength+1 damage each strike. Damage from this weapon's strikes cannot be prevented except by other strikes. Once each round, bearer may cancel a grapple card played by the opposing minion as it is played (no cost is paid), and the Ainkurn Sword can't be used for the initial strike that round.

A melee weapon that does moderate damage, but they can't be prevented by non-strike cards to illustrate the fact that is it very keen. I burrowed the Joumlon's Axe grapple-cancelling effect, with a little twist (you're forced to use the axe, here you can't use the sword).

Are they interesting? If not why?
Are they balanced? If not why? (keep in mind they're trophies).

Isanwayen wrote:

Cool ideas. I like both of them,but...
The grapple cancel effect from the sword makes not that much sense to me. Why cancel a grapple as a close combat deck? If you do, just to make sure, you can use your melee weapons. It does not harmonize. You may cancel the grapple, to be able to use your weapon, but you can't use it by the special text of it... so you need another weapon... kinda cheesy

You're at close range. The opposing minion tries to grapple you, but you use your sword defensively as a lethal threat would he come too close.
Or it's simply imbued with special powers.
The grapple-cancel part could be dropped, but losing the sword to a Canine Horde is already harsh, so not being able to use it under grapple seemed a bit too much.