Although Damage Control is very strong, it is also a barrier that consumes the most energy. Use it when it counts!
Trigger:
Front Trigger
[CONT]:During your opponent's turn's guard step, this card can be called to (GC) as a trigger unit, it becomes a Grade 0/[Shield]15000 guardian, and it gets"[CONT]:If your opponent's vanguard is grade 3 or greater, this unit gets [Shield]+5000.".