As an additional cost to cast this spell, sacrifice a creature.Return a creature card from your graveyard to the battlefield, then return another creature card from your graveyard to your hand.
Whenever Risen Reef or another Elemental you control enters, look at the top card of your library. If it's a land card, you may put it onto the battlefield tapped. If you don't put the card onto the battlefield, put it into your hand.
If Leyline of Sanctity is in your opening hand, you may begin the game with it on the battlefield.You have hexproof. (You can't be the target of spells or abilities your opponents control.)
When Scampering Scorcher enters, create two 1/1 red Elemental creature tokens. Elementals you control gain haste until end of turn. (They can attack and this turn.)
Vigilance (Attacking doesn't cause this creature to tap.)As Diamond Knight enters, choose a color.Whenever you cast a spell of the chosen color, put a +1/+1 counter on Diamond Knight.
FlyingWhen Gorging Vulture enters, mill four cards. You gain 1 life for each creature card milled this way. (To mill four cards, put the top four cards of your library into your graveyard.)
TrampleWhen Ethereal Elk enters, you may search your library and/or graveyard for a card named Vivien, Nature's Avenger, reveal it, and put it into your hand. If you search your library this way, shuffle.