Phantom Skyblaster

Level 4 DARK/Fiend Effect
1100 ATK / 800 DEF

When this card is Normal or Flip Summoned: You can Special Summon any number of "Skyblaster Tokens" (Fiend/DARK/Level 4/ATK 500/DEF 500), up to the number of monsters you control. Once per turn, during your Standby Phase: You can inflict 300 damage to your opponent for each "Skyblaster" monster you control. "Skyblaster" monsters you control cannot declare an attack during the turn you activate this effect.

Rulings – Yugipedia

Printings:

Duelist Pack: Jesse Anderson: DP07-EN007 (Ultra Rare) - 2008-01-26
Legendary Collection 2: The Duel Academy Years Mega Pack: LCGX-EN194 (Secret Rare) - 2011-10-04
Duel Terminal 6b: DT06-EN056 (Duel Terminal Normal Parallel Rare) - 2012-05-25
OTS Tournament Pack 6: OP06-EN021 (Common) - 2017-12-07
Structure Deck: Powercode Link: SDPL-EN015 (Common) - 2018-08-09
Structure Deck: Sacred Beasts: SDSA-EN007 (Common) - 2020-07-09
Egyptian God Deck: Slifer the Sky Dragon: EGS1-EN010 (Common) - 2021-06-17

Prices:

Cardmarket: 0.08 €
TCGplayer: $ 0.11