Mechanics Playground: Virtual Booster

River Crocodile    C  Creature – Crocodile Aggression 1 (This gets +1/+1 for each creature blocking it.) 1/2	Aether Injector    R  Creature – Mutant Graft 4 When Aether Injector dies, return all creatures with +1/+1 counters on them to their owner's hands. 0/0	Unleash the Hounds    U  Sorcery For each creature target opponent controls, put a 1/1 red Hound creature with haste onto the battlefield. 1/1	Firemoon Heart    R  Enchantment – Ward Ward creature (You may pair this with exactly one creature when either enters the battlefield. They remain paired as long as they're both on the battlefield.) Warded creature gets +4/+0, has haste, and has "Sacrifice this creature at the beginning of the next end step".	Blind Brawler    C  Creature – Orc Aggression 1 (This gets +1/+1 for each creature blocking it.) Blind Brawler attacks each turn if able. 2/2
Consuming Nightmare    R  Creature – Demon Horse Players may choose not to untap creatures during their untap step. Whenever another a creature untaps during its player's untap step, its controller loses 2 life. 3/3	Energy Tracer    R  Artifact Creature Whenever an opponent or permanent you don't control would get a counter, instead put a +1/+1 counter on Energy Tracer. 1/1	Signal Myr    C  Artifact Creature – Myr When Signal Myr enters the battlefield, you may search your library for any number of cards named Signal Myr, shuffle your library and put those cards on top of it. 2/1	Boros Infantry    C  Creature – Soldier Tactics (This creature gets +1/+0 as long as it's tapped. You may choose not to tap this as it attacks.) 1/3	Shapeshift    R  Sorcery Exile target permanent. Its controller searches their library for a permanent with the same converted mana cost and puts it onto the battlefield under their control, then shuffles their library.
Silent Wish    R  Sorcery Search your library for up to three cards and exile them, then shuffle that many cards you own from outside the game into your library.	Tortoise Engine    U  Artifact Creature – Juggernaut Whenever a creature blocks Tortoise Engine, that creature deals damage equal to its power to its controller. 4/6	Automata Surgeon    C  Creature – Human Artificer , : Assemble 1 (Put 1 colorless Contraption artifact token/s onto the battlefield.) Sacrifice a Contraption: Untap Automata Surgeon. 2/4	Wriggling Flesh    C  Creature – Golem Bloodcast 1 (As an additional cost to cast this, you may pay up to . This enters the battlefield with that many +1/+1 counters on it and you lose that much life.) 2/3	Pulse Barrier    R  Artifact If a source would deal 4 or more damage to you, it deals 3 damage instead.

River Crocodile (common)
Aether Injector (rare)
Unleash the Hounds (uncommon)
Firemoon Heart (rare)
Blind Brawler (common)
Consuming Nightmare (rare)
Energy Tracer (rare)
Signal Myr (common)
Boros Infantry (common)
Shapeshift (rare)
Silent Wish (rare)
Tortoise Engine (uncommon)
Automata Surgeon (common)
Wriggling Flesh (common)
Pulse Barrier (rare)