Firewall Dragon, Terahertz

Extradeck Link 5 - 3+ cyberse creatures

Counter any creature spell, activated ability, or triggered ability your opponent control, during combat.
{1}: Search your library or sideboard for a cyberse creature put into your graveyard, put it into the graveyard, then give this creature +6/0 and add a counter with one of its colors. Activate only once each turn
If this creature was blocked and has at least one colored counter, you may start another combat phase only this creature can attack, You may activ