Chronojet Dragon (V-TD10/002EN) [Chronojet]

[ACT](VC):[COST] [Discard one or more cards with the sum of their grades being 3 or greater from your hand], search your deck for up to one grade 4 card, ride it as [STAND], and shuffle your deck. At the end of the turn, retire that unit, and ride a grade 3 card from your soul as [REST]. [AUTO](VC/RC):When it attacks, [COST][Counter-Blast 1], and until end of that battle, this unit end of that battle, this unit gets [Power]+5000, and your opponent cannot call sentinels from his or her hand.