Players can't gain life.
Damage can't be prevented.
All damage is dealt as though its source had wither. (A source with wither deals damage to creatures in the form of -1/-1 counters.)

Whenever Farrel's Zealot attacks and isn't blocked, you may have it deal 3 damage to target creature. If you do, Farrel's Zealot assigns no combat damage this turn.

Whenever a nontoken creature is put into your graveyard from the battlefield, create a 1/1 white Spirit creature token with flying.

, , Sacrifice Flame Elemental: It deals damage equal to its power to target creature.

Each player discards any number of cards, then draws that many cards.
Draw a card.

Whenever Glass Asp deals combat damage to a player, that player loses 2 life at the beginning of their next draw step unless they pay before that step.

Creatures you control have menace. (They can't be blocked except by two or more creatures.)

When Hazezon Tamar enters the battlefield, create X 1/1 Sand Warrior creature tokens that are red, green, and white at the beginning of your next upkeep, where X is the number of lands you control at that time.
When Hazezon leaves the battlefield, exile all Sand Warriors.

Put target creature card from a graveyard onto the battlefield under your control.

, : Target creature gains first strike until end of turn.

Destroy target land. If that land was a snow land, Icequake deals 1 damage to that land's controller.

: The next time a source of your choice would deal damage to target creature this turn, that source deals that damage to you instead.

Destroy target creature with converted mana cost X. If that creature dies this way, Kaervek's Purge deals damage equal to the creature's power to the creature's controller.

First strike; banding (Any creatures with banding, and up to one without, can attack in a band. Bands are blocked as a group. If any creatures with banding you control are blocking or being blocked by a creature, you divide that creature's combat damage, not its controller, among any of the creatures it's being blocked by or is blocking.)

Korlash, Heir to Blackblade's power and toughness are each equal to the number of Swamps you control.
: Regenerate Korlash.
Grandeur — Discard another card named Korlash, Heir to Blackblade: Search your library for up to two Swamp cards, put them onto the battlefield tapped, then shuffle your library.

Krakilin enters the battlefield with X +1/+1 counters on it.
: Regenerate Krakilin.

First strike; legendary landwalk (This creature can't be blocked as long as defending player controls a legendary land.)

Whenever Mindstab Thrull attacks and isn't blocked, you may sacrifice it. If you do, defending player discards three cards.