(Then shuffle this card into its owner's library.) If the target creature's power becomes greater than 3 before Petty Revenge resolves, the target is illegal and the spell is put into its owner's graveyard
Get familiar with these cards so you know what youve got if you pull one

A Girl and Her Dogs (playtest) A Killer Among Us A Most Helpful Weaver Aang, Airbending Master Aatchik, Emerald Radian Abdel Adrian, Gorion's Ward Abian, Luvion Usurper (playtest) Abstruse Interference Abundant Countryside Abyssal Harvester Abzan Ascendancy Abzan Monument Academy Manufactor Accomplished Automaton Acererak the Archlich Aclazotz, Deepest Betrayal Acorn Catapult Adagia, Windswept Bastion Adanto, the First Fort Additive Evolution Adeline, Resplendent Cathar Adeline, Resplendent Cathar Adipose Offspring Adorned Crocodile Adorned Pouncer Advent of the Wurm Adverse Conditions Aerie Worshippers Aether Channeler Aether Chaser Aether Herder Aether Inspector Aether Poisoner Aether Refinery Aether Swooper Aeve, Progenitor Ooze Afterlife Afterlife Insurance Agate Instigator Agatha's Champion Age of Ultron Agent 13, Sharon Carter Agents of HYDRA Aggressive Biomancy Ainok Strike Leader Air Nomad Legacy Ajani Fells the Godsire Ajani Goldmane Ajani's Chosen Ajani's Last Stand Ajani, Nacatl Avenger Ajani, Nacatl Pariah Ajani, Outland Chaperone Ajani, Strength of the Pride Akim, the Soaring Wind Akki Ember-Keeper Akoum Stonewaker Akroan Crusader Akroan Horse Alandra, Sky Dreamer Alela, Artful Provocateur Alela, Cunning Conqueror Alenni, Brood Recruiter Alharu, Solemn Ritualist Alicia Masters, Skilled Sculptor Alien Invasion Aligned Heart Alirios, Enraptured Alistair, the Brigadier Alive // Well Alive // Well Allied Teamwork

The average cube use of two mana is more than a 2/1 and so in theory adding a Snapcaster to a card reduces it's tempo
If you are doing those things, however, Skite becomes a multiple turn roadblock that negates all pump and protection