Marath enters with a number of +1/+1 counters on it equal to the amount of mana spent to cast it.
, Remove X +1/+1 counters from Marath: Choose one —
• Put X +1/+1 counters on target creature. X can't be 0.
• Marath deals X damage to any target. X can't be 0.
• Create an X/X green Elemental creature token. X can't be 0.

, : Look at the top five cards of your library. You may put a creature card with power 5 or greater from among them onto the battlefield. Put the rest on the bottom of your library in any order.

: Target noncreature artifact becomes an artifact creature with power and toughness each equal to its mana value until end of turn.
: Target artifact creature gains deathtouch and lifelink until end of turn.

Flying
When Derevi enters and whenever a creature you control deals combat damage to a player, you may tap or untap target permanent.
: Put Derevi onto the battlefield from the command zone.

Flying
When Jeleva enters, each player exiles the top X cards of their library, where X is the amount of mana spent to cast Jeleva.
Whenever Jeleva attacks, you may cast an instant or sorcery spell from among cards exiled with Jeleva without paying its mana cost.

, Sacrifice a creature: Each other player sacrifices a creature.
, Sacrifice an artifact: Each other player sacrifices an artifact.
, Sacrifice an enchantment: Each other player sacrifices an enchantment.

Whenever a creature attacks one of your opponents or a planeswalker an opponent controls, that creature gets +2/+0 until end of turn.

Vigilance, trample
, : Exile another target creature. Return that card to the battlefield under its owner's control at the beginning of the next end step.

At the beginning of each player's draw step, that player draws an additional card.
Whenever an opponent draws a card, Nekusar deals 1 damage to that player.

Flying
When Sharuum enters, you may return target artifact card from your graveyard to the battlefield.

When you cast this spell, create X 0/1 red Kobold creature tokens named Kobolds of Kher Keep, where X is the amount of mana spent to cast it.
Flying
Sacrifice another creature: Prossh gets +1/+0 until end of turn.

At the beginning of your upkeep, you gain 2 life.
Whenever you gain life, you may pay . If you do, draw a card and each opponent loses 1 life.
At the beginning of your upkeep, if Oloro is in the command zone, you gain 2 life.

Haste
Whenever Thraximundar attacks, defending player sacrifices a creature of their choice.
Whenever a player sacrifices a creature, you may put a +1/+1 counter on Thraximundar.