Eccentric Boy

[ Spellcaster / Effect / Tuner ] When using this card as a Synchro Material Monster, the other Synchro Material Monster is 1 monster in your hand. The Synchro Monster that used this card as a Synchro Material Monster cannot activate its effect, its effect(s) is negated, and it is removed from play when removed from the field. ATK/ 800 DEF/ 200