(Generic)Isekai/Dungeon Test concepts: Virtual Booster

Blast-Wind Greeting    C  Sorcery Exile all instants and sorcery cards from all graveyards. Then, if ten or more instant and/or sorcery cards were exiled this way, put a flying counter on each Boss you control.	Tsoshi, the Insatiable    R  Legendary Creature – Vampire Peasant Boss Tier 3 (Tier 3 creatures aren't legendary as long as you control a Tier 4 creature. Creature spells you cast with Tier 1 cost less to cast.) At the beginning of your upkeep, players with more than three cards in their hand lose 3 life, players with more than 3 lands lose 3 life, and players who control creatures with a power or toughness greater than 3 lose 3 life. 3/3	Rosheik, Bully Arcanist    U  Legendary Creature – Human Wizard Boss Ward Tier 2 (Tier 2 creatures aren't legendary as long as you control a Tier 3 or higher creature.) At the beginning of your upkeep, tap each untapped creature with the least power that you don't control. 3/3	Extra Health Bar    U  Instant Until end of turn, double the toughness of target creature you control. If that creature is a Boss, it becomes immune to deathtouch and can't be targeted by spells or abilities your opponents control until end of turn.	Bonus Treasure Guide    U  Creature – Human Shaman Whenever you cast a card with Reward, exile the top card of your library. You may play cards exiled that way until the end of your next turn. 2/3
Driel's Boasting Challenger    C  Creature – Elf Warrior When Driel's Boasting Challenger enters the battlefield, you may put a Lair from your hand onto the battlefield. Sacrifice a Lair,: Put a +1/+1 counter on target creature. If that creature is a Boss, put two +1/+1 counters on it instead. 2/1	Lair of Patient Zero    C  Land – Lair Lair of Patient Zero enters the battlefield tapped. : Add or . ,: Each creature you control with a Tier gets +1/+1 until end of turn.	Ready to Strike    C  Sorcery Put a vigilance counter on up to two target creatures you control. Then, each creature you control with vigilance gets +1/+1 until end of turn.	Haldim Great Rat    C  Creature – Rat ,: Exile target creature from an opponent's graveyard and put a +1/+1 counter on Haldim Great Rat. 2/1	Arcane Protection    C  Instant Target creature you control gains hexproof until end of turn. If Arcane Protection isn't a copy and targeted a Boss this way, you may cast a copy of Arcane Protection.
Sad Laugh    C  Instant Destroy target creature with a power of 2 or less unless its controller discards a card.	White-Whiskered Ally    C  Creature – Wolf : Gets +0/+1 until end of turn. Activate this ability only when you cast a sorcery and only if you control a creature with vigilance. 2/2	Soaring Combat Rush    C  Sorcery Until end of turn target creature can't be blocked by creatures with a power of 2 or less, another target creature can't block, and another target creature gains flying until end of turn.	Pleya, Murky Murderer    C  Legendary Creature – Crocodile Boss Flash, trample Tier 1 (Tier 1 creatures aren't legendary as long as you control a Tier 2 or higher creature.) : Pleya, Murky Murderer gains hexproof until end of turn. When Pleya dies you may put a trample counter on target Boss or cast a Boss from your hand as if it had flash. 3/3	Swamp    B  Basic Land – Swamp

Blast-Wind Greeting (common, foil)
Tsoshi, the Insatiable (rare)
Rosheik, Bully Arcanist (uncommon)
Extra Health Bar (uncommon)
Bonus Treasure Guide (uncommon)
Driel's Boasting Challenger (common)
Lair of Patient Zero (common)
Ready to Strike (common)
Haldim Great Rat (common)
Arcane Protection (common)
Sad Laugh (common)
White-Whiskered Ally (common)
Soaring Combat Rush (common)
Pleya, Murky Murderer (common)
Swamp (basic)