Whenever one or more +1/+1 counters are put on a creature you control, if Moss-Pit Skeleton is in your graveyard, return A-Moss-Pit Skeleton from your graveyard to your hand at the beginning of the next end step
It wont hit everything, but it covers a good chunk of spells on the stack
This is wonderful for players just wanting to try new decks, but this free-flowing form of sharing information is allowing way more people to help in the process of working on unique concepts like Jeskai and Esper SuperFriends or Four-Color Dreadhorde strategies, for example
Izzet Decklist 4 Dragons Rage Channeler 1 Island 4 Unholy Heat 2 Spell Pierce 4 Consider 1 Mountain 4 Arclight Phoenix 4 Ledger Shredder 2 Treasure Cruise 4 Expressive Iteration 4 Faithless Looting 1 Otawara, Soaring City 1 Prismari Command 4 Riverglide Pathway 4 Spirebluff Canal 4 Steam Vents 1 Sokenzan, Crucible of Defiance 1 Den of the Bugbear 4 Mishras Bauble 2 Lightning Bolt 1 Finale of Promise 1 Wooded Foothills 2 Flooded Strand The Izzet archetype is a spell-slinging powerhouse of a deck that utilizes lightning bolts, counterspells, and multitudes of card draws
It took very little time for players to discover several ways to go infinite with her, and the most common method is with Grinning Ignus