As an additional cost to cast this spell, sacrifice a creature.Search your library for a creature card, reveal it, put it into your hand, then shuffle.
Whenever Márton Stromgald attacks, other attacking creatures get +1/+1 until end of turn for each attacking creature other than Márton Stromgald.Whenever Márton Stromgald blocks, other blocking creatures get +1/+1 until end of turn for each blocking creature other than Márton Stromgald.
Jester's Mask enters tapped., , Sacrifice Jester's Mask: Target opponent puts the cards from their hand on top of their library. Search that player's library for that many cards. That player puts those cards into their hand, then shuffles.
Cumulative upkeep—Pay and 1 life. (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)If a land is tapped for mana, it produces instead of any other type.
Merieke Ri Berit doesn't untap during your untap step.: Gain control of target creature for as long as you control Merieke Ri Berit. When Merieke Ri Berit leaves the battlefield or becomes untapped, destroy that creature. It can't be regenerated.
Cumulative upkeep (At the beginning of your upkeep, put an age counter on this permanent, then sacrifice it unless you pay its upkeep cost for each age counter on it.)Creatures that attacked during their controller's last turn can't attack.
Look at the top three cards of target player's library, then put them back in any order. You may have that player shuffle.Draw a card at the beginning of the next turn's upkeep.