Marvel's Spider-Man (SPM)

Mana value 4 or greater

The rule

Several cards reward casting a spell with mana value 4 or greater, or controlling a permanent with that value.

In play

You need a high curve and some acceleration: these cards gain value with every big spell you cast.

The archetypes that lean on it

The other mechanics of the set

The Mana value 4 or greater cards, ranked

Ranked by win rate when the card is in hand (the cards with few games follow, by pick rating).