Name: Mind Erasure
Spell type: Continous
Effect: Activate this card only if your opponent controls a monster with a spell counter, remove all spell counters from monsters your opponent controls. While this card is face up on the field your opponent cannot place spell counters on monsters they control.

(because of so many spell counter addings why not have a niche counter.)

@Scarifar

Eh that card doesn't seem balanced as its like an extra card a turn if not removed. plus you can just keep stacking spell counters for attack and draws.

Name: Arcanite Witch
Level: 7
Attribute: DARK
Monster Type(s): Spellcaster / Synchro
Effect: 1 Tuner + 1 or more non-Tuner Spellcaster-Type monsters
(This card's name is treated as "Arcanite Magician" while it is face-up on the field or in the Graveyard.) When this card is Synchro Summoned, place 2 Spell Counters on this card. This card gains 1000 ATK for each Spell Counter on it. Once per turn, you can remove 1 Spell Counter from this card; draw 1 card.
ATK/DEF: 400/1800

This'll be the last extra deck monster from me for a while.

Name: Mind Erasure
Spell type: Continous
Effect: Activate this card only if your opponent controls a monster with a spell counter, remove all spell counters from monsters your opponent controls. While this card is face up on the field your opponent cannot place spell counters on monsters they control.

(because of so many spell counter addings why not have a niche counter.)

I mean it serves a different enough purpose and I wouldn't say is OP so sure throw it in somewhere.
Lunar's card seems fine as well.

Anyone else got thoughts on this?
Name: Trial By Combat
Spell Type: Continuous
Effect: No cards or effects can be activated during your opponent's Battle Phase.

Name: Reckless Abandon
Spell type: Quick-Play Spell
Effect: Target 1 monster on the field. That monster gains 1000 ATK and cannot be destroyed by battle this turn. Destroy the targeted monster during the End Phase.

Name: Erasure Zone
Spell Type: Field Spell Card
Effect: All Monsters on the field's Attack and Defense become their original Attack and Defense during the Battle Phase.

During either player's Main Phase, the turn player can pay 500 Life Points: Negate this card's effect for that turn.

I figure I might as well join the custom bandwagon. What were the submission limits and rules again?

@Ammokkx

I'll have Nathaniel spend 15 points for one set of BOSH.

Also, speaking of bandwagons...

Name: Polarity Bond
Trap type: Normal
Effect: Banish 1 "Alpha the Magnet Warrior", "Beta the Magnet Warrior", and "Gamma the Magnet Warrior" from your Graveyard; Special Summon 1 "Valkyrion the Magna Warrior" from your hand or Graveyard, ignoring its Summoning conditions.

Since we need more Main Deck Monster Cards here's another one.

Name: Swift Striking Princess
Level/rank: LV 4
Attribute: Light
Monster Type(s): Warrior
Effect: During the End Phase you may send the top card of your deck to the graveyard to return this card to your hand. When this card's effect resolves, you may banish that card to return one monster your opponent controls to their hand.
ATK/DEF: 1400/1200

<Snipped quote by Xeiyenreisha>

That's just overly complicated. Just banish the top card, then send both monsters back to hand. Easy.

I Imagine you would write it like this. Though the effect is unclear in terms of whether its just from field or from grave or from both, I assume just the grave. Note that this effect is actually different as banishing is mandatory. Also note that this effect doesn't target which makes it rather strong, though that may have been your intent.

Effect: During your End Phase you may send the banish the top card of your deck to return this card(From the Graveyard) and one monster your opponent controls to the Hand.

<Snipped quote by Scarifar>

Show me how you would write it then, Scar.

Name: Swift Striking Princess
Level/rank: LV 4
Attribute: Light
Monster Type(s): Warrior
Effect: During the End Phase you may banish the top card of your deck to return this card and one of your opponent's monsters to their hand.
ATK/DEF: 1400/1200

Better? I'll see what your version looks like since it probably looks better than this.

I Imagine you would write it like this. Though the effect is unclear in terms of whether its just from field or from grave or from both, I assume just the grave. Note that this effect is actually different as banishing is mandatory. Also note that this effect doesn't target which makes it rather strong, though that may have been your intent.

Effect: During your End Phase you may send the banish the top card of your deck to return this card(From the Graveyard) and one monster your opponent controls to the Hand.

<Snipped quote by Eklispe>

It's from the graveyard. I'll just let @Ammokkx fix it. Just be better to say banish the top card of your deck.

<Snipped quote by Scarifar>

Show me how you would write it then, Scar.

Name: Swift Striking Princess
Level/rank: LV 4
Attribute: Light
Monster Type(s): Warrior
Effect: During the End Phase you may banish the top card of your deck to return this card and one of your opponent's monsters to their hand.

Better? I'll see what your version looks like since it probably looks better than this.
ATK/DEF: 1400/1200

<Snipped quote by Scarifar>

Show me how you would write it then, Scar.

Name: Swift Striking Princess
Level/rank: LV 4
Attribute: Light
Monster Type(s): Warrior
Effect: During the End Phase you may banish the top card of your deck to return this card and one of your opponent's monsters to their hand.

Better? I'll see what your version looks like since it probably looks better than this.
ATK/DEF: 1400/1200

<Snipped quote by Xeiyenreisha>

Can I just raise an issue about the fact that this card is a reusable non-targeting removal that can activate on either player's turn? That's pretty powerful, guys.

<Snipped quote by LunarStandard>

Was gonna reword it on 'During your end phase', but considering Castel is a thing I can give this a pass. If it becomes a problem I'll tweak it.