Cyber Dragon Sieger

yugipedia.com/wiki/Cyber_Drago…



effect:

2 Machine monsters, including "Cyber Dragon"
This card's name becomes "Cyber Dragon" while on the field or in the GY. During the Battle Phase, if this card did not declare an attack this Battle Phase (Quick Effect): You can target 1 Machine monster you control with 2100 or more ATK; until the end of this turn, it gains 2100 ATK/DEF, also neither player takes any battle damage from attacks involving this card. You can only use this effect of "Cyber Dragon Sieger" once per turn. 


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