During the Beginning phase, players ready their cards, any effects in play that begin at the start of a turn take effect, and players draw a card from their deck
Herigast is a neat Emerge build-around for mono red
Its technically three abilities, which are 1) You may cast the half of this card that has Aftermath from the graveyard, 2) You may ONLY cast the half of this card that has Aftermath from the graveyard, and 3) if this spell was cast from the graveyard, exile it if it would leave the stack for any reason
The Ur-Dragon is difficult to resolve, but it makes casting your other Dragons a lot easier
Here are 19 cards you can replace Replenish with in your deck.
Blowing up one nonblack creature, then immediately blowing up another without expending any mana keeps our mana pool fresh so we can continue to flashback more and more destruction from our graveyard