If this card on the field is destroyed by battle or card effect: You can add, from your GY to your hand, 1 Level 9 monster with a different original Type and Attribute than this card
It's the perfect balance.
Another honorable mention to me would be the Black Star promos on the English side
Banefire | Illustration by Raymond Swanland In Magic slang, fireballs are instant or sorcery spells that deal damage to various targets based on the amount of mana you spent on them, as represented by X
Includes 1 ready-to-play 60-card deck including Deoxys V, 3 reference cards, 1 rules booklet, single-player playmat, damage counters, 1 large metallic coin
One of the best ETB creatures in the game, Atraxa, Grand Unifier lacks the synergy of its predecessor but makes up for it with a wild amount of card advantage