red white blue mtg cards Colors: Red, Blue, 357 Red Elemental Blast | Masters

Also, digging you deep for the pay off, if you dont already have it

Its versatility makes it a valuable inclusion in many blue decks

That requires a few extra lands in play for Fabled Passage, but you can usually work around that restriction

The WUBRG activation is expensive and probably not what you want, though notably powerful if combined with Fiery Emancipation

The first three aren't technically rats, but they are valued allies of rats everywhere

Obviously raw card draw will do the trick, but if all you care about it specifically the second card each turn, a cheap cantrip like Consider or Opt might be your best bet