Giga Gagagigo

Vigilance, trample

Tribute Summon 6 (You may sacrifice any number
of creatures with total mana value equal to 6 or
greater rather than pay this spell's mana cost.)

Whenever Giga Gagagigo becomes tapped
(defense position), its gets -0/-2 .(7/5)

ATK 2450 = 7 7/5 = 6/6 = Level 6 NOT 5
DEF 1500 = 5