Pethyron: Virtual Booster

Rockhide Greatback    R  Creature – Rhino Beast Herd – Whenever Rockhide Greatback blocks and has power 4 or greater, put a +1/+1 counter on each creature you control with power 4 or greater. 4/7	Pethyron's Burden    M  Legendary Creature – Beast Avatar Trample Whenever a creature you control with power 4 or greater, attacks, blocks or fights, put a +1/+1 counter on each creature you control with power 4 or greater 6/6	Aspiring Hellbeast    R  Creature – Devil Beast Stampede – Whenever Aspiring Hellbeast attacks and has power 4 or greater, untap it, it gains Trample. There is an additional combat after this one where only Aspiring Hellbeast may attack. This ability may trigger only once per turn. 2/3	Landborn Glutton    R  Creature – Beast Giant Trample Whenever Landborn Glutton attacks, an opponent may tap all creatures they control. When they do, remove Landborn Glutton from combat. Otherwise, add . 8/8	Hardness Training    C  Sorcery Target creature fights another target creature. Put a +1/+1 counter on the creature dealt less damage this way (If they are tied for least damage, neither creature gets the counter.)
Uproot the Spineless    R  Sorcery Return any number of target creature cards from your graveyard to the battlefield tapped. Put a -1/-1 counter on each of them for each other creature removed this way. Creatures that would die this way are exiled instead.	Familiar Vibrations    C  Sorcery Create a token that is a copy of target creature that reverberated this turn.	Organic Regrowth    C  Sorcery Return up to two target creature cards from your graveyard to your hand	Accumulated Vibrations    M  Enchantment You may cast spells put into the graveyard from permanents reverberating. They cost less to cast where X is the number of spells put into the graveyard this way this turn.	Blacknote Beetle    U  Creature – Insect Defender : Reverberate 2 (Target player puts the top two card(s) of their library into their graveyard.) Whenever Blacknote Beetle reverberates, it deals 2 damage to the targeted player. 2/2
Roartail    C  Creature – Salamander Beast When Roartail enters the battlefield target creature cannot block this turn. 2/2	Pooltick    U  Creature – Insect : Shuffle Pooltick from your graveyard into your library Whenever Pooltick deals combat damage to a player, Reverberate 1 (Target player puts the top one card(s) of their library into their graveyard.) 1/1	Scruffcatcher    U  Creature – Beast Herd – Whenever Scruffcatcher blocks and has power 4 or greater, if the blocked creature has lower power than Scruffcatcher, you may draw a card. 4/3	Genesis Knowledge    U  Enchantment Whenever a creature enters the battlefield under your control, if you didn't cast it from your hand, you may put a +1/+1 counter on it.	Spellshot Spitter    R  Creature – Insect : Reverberate 1 (Target player puts the top one card(s) of their library into their graveyard.) Whenever Spellshot Spitter reverberates, you may cast the card put into the graveyard this way if it's an instant or sorcery card you own. 1/2

Rockhide Greatback (rare)
Pethyron's Burden (mythic)
Aspiring Hellbeast (rare)
Landborn Glutton (rare)
Hardness Training (common)
Uproot the Spineless (rare)
Familiar Vibrations (common)
Organic Regrowth (common)
Accumulated Vibrations (mythic)
Blacknote Beetle (uncommon)
Roartail (common)
Pooltick (uncommon)
Scruffcatcher (uncommon)
Genesis Knowledge (uncommon)
Spellshot Spitter (rare)