Castle Royale

So we have 2 Normal Rituals.... this one's significantly less useful

Old:
Attrib: Light
Type: Rock/Ritual
Level:5
Atk: 500
Def: 3500
This card can only be Ritual Summoned by a Ritual Spell card.

New:
Attrib: Light
Type: Rock/Ritual/Effect
Level:5
Atk: 500
Def: 3500
This card can only be Ritual Summoned by a Ritual Spell card. While you control another monster, except "Castle Royale", your opponent cannot target this card with card effects. This card is unaffected by effects that do not target. During each of your End Phases, gain 300 Life Points for every card on the field. If your life points are 10000 or greater: Increase the ATK and DEF of all Rock and LIGHT monsters you control by your Life Points - 10000.

Seems okay, although the "your opponent cannot target this card with card effects. This card is unaffected by effects that do not target." just seems like a longer version of "This card is unaffected by your opponent's card effects."

You can target it if it's the only monster you control. I wanted to give the opponent a way out other than trying to summon a monster with 3500+ ATK.

This deserves a Deck. I like it

Reason : This was supposed to be purely defensive, but I guess I didn't realize how little it would impact the game. It's now mostly defensive, i mean defensive enough to wait several turns on without doing anything except gain life points.
Now it could be used with Galtser. Or other Rock or LIGHT stuff.