rare giratina card VSTAR Secret - PSA 10 end display Giratina v "*rare miscut*" :

Secure 7 wins and a #MTGEternities Collector Booster box could be yours

When an opponents monster declares an attack while Ordeal of a Traveller is on the field, your opponent must randomly choose a card from your hand and call out the type of card it is (monster, spell, or trap)

Its Pendulum Effect is a play off of Crystal Wing Synchro Dragon , allowing you to negate the effect of a card that targets a DARK Spellcaster you control

Why isnt he played more

86/109 Rocket's Admin(2021)

So, its clear that this is a card which is highly sought after both for its aesthetics and also just the general popularity of the Darkness type Umbreon