Insane Knights

[EndlessOcean]

[spoiler=Extra Deck Cards]

Insane Knight - Oozaki
FIRE - Level 8 - ATK 2800 DEF 2000 - Warrior/Synchro/Effect:
1 Tuner monster + 1 or more non-Tuner Ritual Monsters
Once per turn, you can discard 1 Ritual Monster or Ritual Spell Card; select 1 Monster on the field; destroy it. If that monster was face-down; inflict 500 damage to your opponent. When this card is destroyed, add 1 Ritual Monster from your Graveyard to your hand.

Insane Knight - Groezago
WATER - Rank 3 - ATK 2300 DEF 2300 - Warrior/Xyz/Effect:
2 Level 3 monsters
Once per turn, you can detach 1 Xyz Material Monster from this card; select 1 random card in your opponents hand; discard it. This card gains the following effects for the rest of the turn depending on the type of card discarded:
Monster Card: When this card attacks, destroy 1 face-down Spell/Trap card on the field.
Spell Card: You can send 1 card from your hand to the Graveyard to select 1 face-up monster on the field; that monster loses 500 ATK and DEF.
Trap Card: When this card inflicts battle damage to your opponent, discard 1 card.[/spoiler]

[maximate]

[quote]Insane Knight - Oozaki
FIRE - Level 8 - ATK 2800 DEF 2000 - Warrior/Synchro/Effect:
1 Tuner monster + 1 or more non-Tuner Ritual Monsters
Once per turn, you can discard 1 Ritual Monster or Ritual Spell Card; select 1 Monster on the field; destroy it. If that monster was face-down; inflict 500 damage to your opponent. When this card is destroyed, add 1 Ritual Monster from your Graveyard to your hand.[/quote]

For a Synchro, having Ritual Monster as a Synchro Material will be hard...
& playing ritual seems hard nowadays
Just increase it's ATK & DEF for some Beatsticks

[quote]Insane Knight - Groezago
WATER - Rank 3 - ATK 2300 DEF 2300 - Warrior/Xyz/Effect:
2 Level 3 monsters
Once per turn, you can detach 1 Xyz Material Monster from this card; select 1 random card in your opponents hand; discard it. This card gains the following effects for the rest of the turn depending on the type of card discarded:
Monster Card: When this card attacks, destroy 1 face-down Spell/Trap [b]cardon[/b] the field.
Spell Card: You can send 1 card from your hand to the Graveyard to select 1 face-up monster on the field; that monster loses 500 ATK and DEF.
Trap Card: When this card inflict battle damage to your opponent, discard 1 card.[/quote]

The bolded one, isnt that supposed to be "card on" ?
However, its effect are good & balanced enough

For the first card (6.5/10)
For the second card (8.5/10)