Clock Wyvern

[ Cyberse / Effect ] If this card is Normal or Special Summoned: You can halve this card's ATK, and if you do, Special Summon 1 "Clock Token" (Cyberse/WIND/Level 1/ATK 0/DEF 0). You can only use this effect of "Clock Wyvern" once per turn. ATK/ 1800 DEF/ 1000