Clawrg the Petrificator - Rank4 EARTH with stun effects

[Darj]

Clawrg the Petrificator
Attribute: EARTH
Type: Fiend/Xyz/Effect
Rank: 4
ATK: 1900
DEF: 2700
2 Level 4 EARTH monsters
Once per turn, during either player's turn: You can detach 1 Xyz Material from this card, then target 1 face-up monster on the field; until the end of this turn, its effects are negated and it cannot attack. Also, it becomes Rock-Type while it is on the field or in the Graveyard (even if this card leaves the field), and gains this effect:
• After damage calculation, when this card battles an opponent's monster: Destroy this card, and if you do, its effects are negated while it is in the Graveyard.

 

 

Pretty much a Gorgonic Guardian, Tri-Edge Levia, etc. for Level4 EARTHs. But since plain monster effect negation can be stale, I spiced it up with a second effect that simulates a petrify status on the target, turning it into a Rock and making it crumble after it battles; hence this card's name.

 

I made this card with Rock Stun in mind: As an EARTH it doesn't interfere with Block Golem, then as a Fiend-Type it enables players to be cute with a Dark Calling as tech for summoning Dark Gaia.
 

 

Thoughts?

 

 

P.S. Yes, I know "petrificator" is not the word for defining "someone or something who petrifies", but decided to use it for its name anyway since it sounds better than "petrifier" to me.