m13 mtg cards 2013 Magic Core Set (M13) Whenever another creature with power 3 or greater enters the battlefield under your control Evolving Wilds - Magic 2013

For example, since flipping Sephiroth only requires four Creatures to die, regardless of who controls them, some of the strongest cards in the deck are edict Creatures, or Creatures that force each player to sacrifice when they enter

Is it always the same

Collective Effort is another spell I think may see reasonable amounts of play because of emerge, letting you kill a big creature while also pumping your team to commence an alpha strike

This is pure value in decks that thrive on landfall or bird creature ETBs

Eerie Interlude - Board wipe insurance with bonus ETBs

You can usually play this on turn four, if not earlier