The four MV is one of the cheapest of these additional combat spells and if this card is paired with a card like Double Vision it can have deadly outcomes for your opponents
However, one key component that players often have trouble with in this Master Duel deck is consistency, particularly securing the kinds of cards they need specifically when they need them
Cast Through Time, an Enchantment from Rise of the Eldrazi that grants all your instants and sorceries Rebound, and Narset Transcendent, a Dragons of Tarkir Planeswalker with a -2 ability granting your next instant or sorcery spell Rebound
Licenced sets like Marvel's Spider-Man provide a gateway for spidey-fans and a decent buy in to the TCG, including people who aren't really into the fantasy aesthetic or just want a solid TCG for their favorite franchise
However, Swiftfoot Boots ensures your creature stays alive by giving it hexproof too
Liliana's Contract I am a complete honk for alternate-win-condition cards like Liliana's Contract