A single individual card from the Cardfight!! Vanguard trading and collectible card game (TCG/CCG).
This is of RR rarity.
From the Fighter's Collection 2015 set.
Cardfight!! Vanguard is a Japanese trading card game published by Bushiroad. It was created in collaboration between Akira Ito (Yu-Gi-Oh! R), Satoshi Nakamura (Duel Masters), and Bushiroad president Takaaki Kidani. The game was also released in conjunction with a TV anime series. In the game, players "ride" a unit as their Vanguard, which represents them on the board. They may also summon other units as Rear Guards to attack or support. The game is won by doing 6 points of damage to the opponent's Vanguard.
Card Name: Dark Knight, Efnysien
Card Number: G-FC01/028EN
Clan: Shadow Paladin
Critical: 1
Grade / Skill: 4
Nation: United Sanctuary
Power: 15000
Race: Demon
Rarity: RR
Unit: G Unit
Card Effect: Stride (Released when both players' vanguards are grade 3 or greater!)-Stride Step-[Choose one or more cards with the sum of their grades being 3 or greater from your hand, and discard them] Stride this card on your (VC) from face down. [AUTO]:[Choose one of your rear-guards, and retire it] When this unit is placed on (VC), you may pay the cost. If you do, until end of turn, this unit gets [Power]+7000, and "[AUTO](VC):When this unit's attack hits a vanguard, choose one of your opponent's rear-guards, and retire it.".