'Cause at the end of the day, long as there's 2 people left on the planet, someone is gonna want someone dead.

[Premier Alexander Romanov]

Bronze Sand Sniper
EARTH/Warrior/Level 4/1600 ATK/1000 DEF
You can Set this card face-down in your Spell & Trap Card Zone as a Spell Card. If this face-down card in your Spell & Trap Card Zone is destroyed by an opponent's card effect and sent to the Graveyard: Special Summon this card from your Graveyard during the End Phase and inflict 1000 points of damage to your opponent's Life Points.

Emerald Forest Sniper
EARTH/Warrior/Level 4/500 ATK/2100 DEF
You can Set this card face-down in your Spell & Trap Card Zone as a Spell Card. If this face-down card in your Spell & Trap Card Zone is destroyed by an opponent's card effect and sent to the Graveyard: Special Summon this card from your Graveyard during the End Phase and draw 1 card.

Imperial Master Sniper
EARTH/Warrior/Level 5/2500 ATK/3000 DEF
Cannot be Normal Summoned or Set. You can Set this card face-down in your Spell & Trap Card Zone as a Spell Card. If this face-down card in your Spell & Trap Card Zone is destroyed by an opponent's card effect and sent to the Graveyard: Special Summon this card from your Graveyard during the End Phase. This card's battle position cannot be changed, except with a card effect.

Red Star Mercenary Sniper
DARK/Warrior/Level 4/1900 ATK/0 DEF
You can Set this card face-down in your Spell & Trap Card Zone as a Spell Card. If this face-down card in your Spell & Trap Card Zone is destroyed by an opponent's card effect and sent to the Graveyard; Target 1 Level 4 or lower Warrior-Type monster in your Graveyard; Special Summon this card and the target from your Graveyard during the End Phase.

Legendary Gold Sniper
DARK/Warrior/Xyz/Rank 4/2900 ATK/1700 DEF
3 Level 4 Warrior-Type monsters
When this monster destroys a monster by battle and sends it to the Graveyard while it has an Xyz Material(s); Draw 1 card. When your opponent activates a Spell/Trap/Monster Card effect that destroys a card(s) on your side of the field: Detach 1 Xyz Material from this card; the effect of that card becomes "Your opponent targets 1 card on their side of the field; Destroy the target".

Antimateriel Barrel
Spell/Equip
Equip only to a "Sniper" monster. When the equipped monster battles an opponent's monster: You can target 1 card your opponent controls; send the target to the Graveyard.

Concealment
Spell/Quick-Play
Rearrange the face-down Spell and Trap Cards on your side of the field. When this face-down card is destroyed by a card effect controlled by your opponent; Set 1 "Sniper" Monster Card face-down in your Spell & Trap Card Zone from your Deck as a Spell Card, then rearrange the face-down Spell and Trap Cards on your side of the field.

Ruse
Trap/Counter
Activate when your opponent activate a Spell/Trap/Monster Card effect that negates the activation of a card effect; The effect becomes "Your opponent targets 1 card on their side of the field; Destroy the target". If the destroyed card is a "Sniper" Monster Card Set face-down in your Spell & Trap Card Zone as a Spell Card; Draw 1 card.

Sniper Duel
Trap/Continuous
During each player's Standby Phase; The turn player may target 1 face-down card on the field; Destroy that target. This card's effect is treated as being the effect of a card controlled by the turn player. If you do not control a face-up "Sniper" monster; Destroy all Spell & Trap Cards on the field.

Discuss.

[Medivh]

Heavy Storm + Mystical Refpanel = SO MUCH WIN

[Premier Alexander Romanov]

You can't use Mystical Refpanel on an effect that targets multiple players.