Format: Legacy
Deck Type: Aggro/Combo
Colors: Green/Blue

Description:
"Swift Sickness" embodies the relentless and rapid spread of a virulent infection, translating this lethal efficiency onto the battlefield with precision and speed. At the heart of this deck lies the capability to unleash a swift and unstoppable wave of poison counters, threatening to end games within the first few turns. Utilizing a potent mix of green's natural growth and blue's cunning, "Swift Sickness" aims to exploit the infect mechanic to its fullest, delivering a rapid victory before the opponent can mount a significant defense.

How to Play:
The strategy is straightforward yet deadly: deploy early infect creatures like Glistener Elf and Blighted Agent, and amplify their threat with a suite of pump spells such as Giant Growth, Groundswell, and Mutagenic Growth. The deck's namesake, "Swift Sickness," is not just a moniker but a battle plan, emphasizing the importance of speed and surprise. Artful Dodge and Distortion Strike ensure your creatures can reach the opponent unblocked, turning even a single point of infect damage into a potential death sentence with the right combination of spells.

Winning the Game:
Winning with "Swift Sickness" often involves a critical turn where you assemble the perfect hand to boost one of your infect creatures beyond the opponent's ability to block or remove, pushing through the necessary damage to reach 10 poison counters. The inclusion of Vines of Vastwood not only provides a significant boost but also protects your key pieces from removal, ensuring that when you strike, it's swift and decisive.

Sideboard Strategy:
The sideboard of "Swift Sickness" is designed to counteract the most common forms of interference you might face. Mortal's Resolve and Ranger's Guile offer additional protection against targeted removal, while Withstand Death ensures your creatures can survive even the most devastating board wipes. Sheltering Word provides a dual function of protection and life gain, a valuable asset against burn strategies. The additional Blighted Agent and Vines of Vastwood in the sideboard allow you to double down on your infect strategy in games two and three, adapting to your opponent's increased preparedness for your infectious onslaught.

Skill Level and Playability:
"Swift Sickness" is accessible for players new to the infect mechanic but also holds depth for seasoned veterans to explore. Mastery of the deck comes from knowing when to commit to an all-out attack and when to bide your time, gathering the components for a fatal strike. The thrill of playing "Swift Sickness" comes from its high-risk, high-reward nature, offering exhilarating victories that highlight the player's strategic acumen and timing.

In essence, "Swift Sickness" is not just a deck; it's a statement—a declaration that you can and will claim victory with unmatched speed and precision. Embrace the infectious spirit of this deck, and let the epidemic of "Swift Sickness" spread across the Modern landscape.