Argostars - Lightning Tydeu (Quarter Century Secret Rare) [SUDA-EN071] Quarter Century Secret Rare

While this card is face-up in the Spell & Trap Zone, Warrior monsters you control gain 500 ATK/DEF. Once per turn: You can discard 1 card; Special Summon this card as an Effect Monster (Warrior/LIGHT/Level 4/ATK 2000/DEF 2000) with the following effect (this card is also still a Trap), then you can add 1 "Argostars" card from your Deck to your hand, except "Argostars - Lightning Tydeu".
• Once per turn (Quick Effect): You can place this card face-up in your Spell & Trap Zone.