Supreme Darkness’ special card to celebrate the 25th anniversary of the Yu-Gi-Oh! Official Card Game has been unveiled!

SUDA-JP000 Paladins of Bonds and Unity
Level 12 LIGHT Spellcaster / Synchro / Effect
ATK/2900 DEF/2900
1 Tuner + 1+ non-Tuner monsters with 2500 original ATK and DEF
(1) This Synchro Summoned card cannot be destroyed by your opponent’s card effects, also your opponent cannot target it with card effects.
(2) This Synchro Summoned card gains 100 ATK/DEF for each card on the field and in the GYs while you have 25 or more cards in your GY.
(3) Once per turn, when a Spell Card is activated and your opponent has 25 or more cards in their GY (Quick Effect): You can negate the activation, and if you do, destroy that card.

Cheers to Villa from reddit for the initial translation.

Source: yu-gi-oh.jp