(Generic)Isekai/Dungeon Test concepts: Virtual Booster

Rust Cloak    R  Enchantment – Aura Enchant creature Enchanted creature gets +2/+2 Whenever an artifact enters the battlefield, if it's a creature, put a +1/+1 counter on the enchanted creature, and it fights that creature. Otherwise, enchanted creature deals 3 damage to that artifact's controller.	Lansis, Spell Breath    U  Legendary Creature – Dragon Boss Flying Tier 2 (Tier 2 creatures aren't legendary as long as you control a Tier 3 or higher creature.) Whenever you cast an instant or sorcery spell, target creature you control gets +1/+0 and gains haste and hexrpoof until end of turn. 2/5	Black Night Herald    U  Creature – Vampire Knight Flying Whenever a creature dealt damage by Black Night Herald dies, its controller loses 2 life and you gain 2 life. 4/3	Yalko, the Unmoved Expression    U  Legendary Creature – Angel boss Flying Tier 2 (Tier 2 creatures aren't legendary as long as you control a Tier 3 or higher creature.) Whenever an opponent casts their first noncreature spell each turn, target permanent you control gains indestructible until end of turn. 3/5	Bomb-Mad Boggart    C  Creature – Goblin Warrior ,- Sacrifice Bomb-Mad Boggart: Deal 2 damage to target player that was dealt damage by Bomb-Mad Boggart this turn. The boggart clans of the plains are a little smarter than the goblins of caves, mazes, and mountains. A little. 2/1
Grim Recall    C  Instant Exile Grim Recall as it resolves. Draw two cards, then you may discard a card. If you do, return target card from your graveyard to your hand at the beginning of your next upkeep.	Zydhao Banshee    C  Creature – Spirit Flying At the beginning of your upkeep, sacrifice Zydhao Banshee. When Zydhao Banshee is sacrificed this way, each opponent sacrifices a creature. 4/3	Bolkaz's Cackle    C  Sorcery Return target creature to its owner's hand. Then, that creature's owner reveals their hand. Choose a nonland, noncreature card. That player discards that card.	Hinterland Hell Raiser    C  Creature – Human Barbarian Hinterland Hell Raiser enters the battlefield with a trample and a reach counter if an artifact card you don't own entered a player's graveyard this turn. 2/2	Hwalch's Emisarry    C  Creature – Merfolk Wizard When Hwalch's Emisarry enters the battlefield, target player puts the top two cards of their library into their graveyard. "Welcome to Vanquice" 1/1
Flying Fortress Guard    C  Creature – Elemental Knight Flying, vigilance Exile Flying Fortress Guard: Flying Fortress Guard's owner creates four Treasure tokens. Only opponents may activate this ability. 3/7	Encroaching Black Miasma    C  Instant Target creature gets -2/-2 until end of turn and another target creature gets -1/-1 until end of turn.	Rassuria, Quichayan Terror    C  Legendary Creature – Basilisk Boss Menace, hexproof Tier 1 (Tier 1 creatures aren't legendary as long as you control a Tier 2 or higher creature.) : Rassuria, Quichayan Terror gains deathtouch until end of turn. When Rassuria dies, you may put a menace or a hexproof counter on target Boss. 3/3	Feast on Foes    C  Enchantment Whenever a creature you don't control dies, create a Food token. "Cerberus, angel, sphinx, they all taste the same covered in pain pepper sauce." -Driel, the Body Gardener	Plains    B  Basic Land – Plains

Rust Cloak (rare)
Lansis, Spell Breath (uncommon)
Black Night Herald (uncommon)
Yalko, the Unmoved Expression (uncommon)
Bomb-Mad Boggart (common)
Grim Recall (common)
Zydhao Banshee (common)
Bolkaz's Cackle (common)
Hinterland Hell Raiser (common)
Hwalch's Emisarry (common)
Flying Fortress Guard (common)
Encroaching Black Miasma (common)
Rassuria, Quichayan Terror (common)
Feast on Foes (common)
Plains (basic)