Whenever a land you control enters, each landfall ability of the permanents you control will trigger
The final big proliferate-friendly card I'd recommend is Tezzeret the Seeker, which can find your important artifacts more efficiently than the other tutors can, plus it also acts as huge ramp if you've got an Everflowing Chalice or Empowered Autogenerator on the battlefield
The black-white-red Legends Legacy and five-colour Painbow (har har) decks will feature a new version of Dihada and Jared Carthalion, respectively, as face cards
ID: 117318 (TCG-MTG-CMCD-EU) Tap or click above to open expanded view Sealed, unopened product
Were going to turn that vague gut feeling into a concrete, evidence-based conclusion
The ability of being able to stop anything your opponent is doing for just two mana cannot be overstated