Akiru
This card can be Special Summoned if you control 2 or more "Wolf Fighter" monsters. Once per turn, you can destroy 1 Face Down card on the field.
OP... just the 4 star 2300 atk overpowers it. Make it lv 6 or 7, since it can be Special Summoned anyway.
Fatal Strike
You can Tribute Summon this monster by Tributing 1 "Warrior Fighter" monster. Once per turn, you can discard 1 card and select 1 monster you control. That monster gains 800 ATK.
Shadow Strike
This card gains 300 ATK for each Face-Up "Wolf Fighter" on the field. Once per turn, you can discard 1 card to destroy either all monsters on the field or all Spell and Trap cards your oppoent controls.
Call of the Wild [Normal Spell (not Counter)]
Activate when a "Wolf Fighter" monster is destroyed and sent to the Graveyard as a result of battle. Destroy the monster that destroyed that monster and inflict damage to your opponent's Life Points equal to that monster's ATK.
Hunting Grounds
Increase the ATK of all "Wolf Fighter" and "Wolf Tamer" monsters by 500. When a card is removed from the field, you can Special Summon 1 "Wolf Fighter-Fatal Strike" or "Wolf Tamer-Shadow Strike" from your Deck, Hand, or Graveyard.
Overpowered