What are some key strategies and deck-building considerations for a competitive Modern Affinity deck in Magic: The Gathering?

Some key strategies for a competitive Modern Affinity deck in Magic: The Gathering include maximizing artifact synergy, utilizing efficient mana sources, and maintaining a low mana curve. Deck-building considerations include including a mix of creatures, artifacts, and spells that support the affinity mechanic, balancing aggression with resilience, and incorporating sideboard options to address common matchups.