Menace IKO Arena Bo1 aka "Phantom Menace" (Pioneer)

This is a fast creature deck with strong synergies that can start off fast, and control the early battlefield to bring the game to a quick finish by turn 5 or 6.

//Creatures
25 creatures in the deck and Bonecrusher Giant is the only one that does not have Menace, or the option to have it.

Pestilent spirit adds in a sweeper capability against your opponents creatures, with Chandra's Pyrohelix and Blazing Volley and it makes Stomp and Purphoros's Intervention even more effective against oversized targets.

A turn 4 Pestilent Spirit, followed by Blazing Volley will usually result in a win against creature heavy opponents (Especially other weenie/swarm decks)

3 [WAR] Dreadmalkin
4 [IKO] Labyrinth Raptor
4 [ELD] Stormfist Crusader
2 [ELD] Bonecrusher Giant // Stomp
4 [IKO] Grimdancer
4 [IKO] Hunted Nightmare
4 [RNA] Pestilent Spirit

Elder spell is main deck because of the heavy Planeswalker presence of the current meta, as well as Purphoros's Intervention. Tentative Connection was the main card before these came into the deck. Tentative Connection could win you games all by itself when your opponent is leaving up a large defender in the hopes of holding off your swarm. It also plays nice with Dreadmalkin, as removal.

Call of the Death-Dweller is a momentum keeper, after your opponent thinks they have just removed your key pieces, you put them back on the board. This is one of the option cards, that could be replaced with other spells, or sideboarded to build a stronger game 2.

//Instants
2 [WAR] Chandra's Pyrohelix

//Sorceries
4 [IKO] Blazing Volley
2 [THB] Purphoros's Intervention
3 [WAR] The Elderspell
2 [IKO] Call of the Death-Dweller

//Lands
4 [RNA] Blood Crypt
1 [ELD] Castle Embereth
1 [ELD] Castle Locthwain
2 [THB] Field of Ruin
6 [IKO] Mountain
8 [IKO] Swamp

//Sideboard
4 [IKO] Fire Prophecy - Was used in the main deck before adding in Bonecrusher Giant // Stomp and Call of the Death-Dweller
2 [ELD] Bonecrusher Giant // Stomp
3 [M20] Blood for Bones
2 [IKO] Porcuparrot - Was used in the main deck before Purphoros's Intervention, worked great on Grimdancer and Pestilent Spirit, as a targeted killer.
4 [IKO] Tentative Connection - Used to either steal a huge creature and likely win the game, or as mid game removal, by stealing, attacking, and then feeding to Dreadmalkin.