Cardfight!! Vanguard - Future Card Buddyfight - Damage Control (H) DZ-TB01/H84EN

[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.".