
Overwhelming Surge | Instant | | Choose one or both —
• Overwhelming Surge deals 3 damage to target creature.
• Destroy target noncreature artifact. | Gaboleps

Rescue Leopard | Creature | Cat | Whenever this creature becomes tapped, you may discard a card. If you do, draw a card. | Hector Ortiz

Seize Opportunity | Instant | | Choose one —
• Exile the top two cards of your library. Until the end of your next turn, you may play those cards.
• Up to two target creatures each get +2/+1 until end of turn. | Josiah "Jo" Cameron

Tersa Lightshatter | Legendary Creature | Orc Wizard | Haste
When Tersa Lightshatter enters, discard up to two cards, then draw that many cards.
Whenever Tersa Lightshatter attacks, if there are seven or more cards in your graveyard, exile a card at random from your graveyard. You may play that card this turn. | Olivier Bernard

Underfoot Underdogs | Creature | Goblin Warrior | When this creature enters, create a 1/1 red Goblin creature token.
{1}, {T}: Target creature you control with power 2 or less can't be blocked this turn. | Brent Hollowell

Unsparing Boltcaster | Creature | Ogre Wizard | When this creature enters, it deals 5 damage to target creature an opponent controls that was dealt damage this turn. | Gaboleps

Zurgo's Vanguard | Creature | Dog Soldier | Mobilize 1 (Whenever this creature attacks, create a tapped and attacking 1/1 red Warrior creature token. Sacrifice it at the beginning of the next end step.)
This creature's power is equal to the number of creatures you control. | Michele Giorgi

Cori Mountain Stalwart | Creature | Human Monk | Flurry — Whenever you cast your second spell each turn, this creature deals 2 damage to each opponent and you gain 2 life. | Josiah "Jo" Cameron

Windcrag Siege | Enchantment | | As this enchantment enters, choose Mardu or Jeskai.
• Mardu — If a creature attacking causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
• Jeskai — At the beginning of your upkeep, create a 1/1 red Goblin creature token. It gains lifelink and haste until end of turn. | Néstor Ossandón Leal

Frostcliff Siege | Enchantment | | As this enchantment enters, choose Jeskai or Temur.
• Jeskai — Whenever one or more creatures you control deal combat damage to a player, draw a card.
• Temur — Creatures you control get +1/+0 and have trample and haste. | Dan Murayama Scott

Flamehold Grappler | Creature | Human Monk | First strike
When this creature enters, copy the next spell you cast this turn when you cast it. You may choose new targets for the copy. (A copy of a permanent spell becomes a token.) | Wayne Wu

Monastery Messenger | Creature | Bird Scout | Flying, vigilance
When this creature enters, put up to one target noncreature, nonland card from your graveyard on top of your library. | Forrest Imel

Narset, Jeskai Waymaster | Legendary Creature | Human Monk | At the beginning of your end step, you may discard your hand. If you do, draw cards equal to the number of spells you've cast this turn. | Randy Vargas

Rediscover the Way | Enchantment | Saga | (As this Saga enters and after your draw step, add a lore counter. Sacrifice after III.)
I, II — Look at the top three cards of your library. Put one of them into your hand and the rest on the bottom of your library in any order.
III — Whenever you cast a noncreature spell this turn, target creature you control gains double strike until end of turn. | Clint Lockwood

Riverwheel Sweep | Sorcery | | Tap target creature. Put three stun counters on it. (If a permanent with a stun counter would become untapped, remove one from it instead.)
Exile the top two cards of your library. Choose one of them. Until the end of your next turn, you may play that card. | Wayne Wu

Defibrillating Current | Sorcery | | Defibrillating Current deals 4 damage to target creature or planeswalker and you gain 2 life. | Isis

Reigning Victor | Creature | Orc Warrior | Mobilize 1 (Whenever this creature attacks, create a tapped and attacking 1/1 red Warrior creature token. Sacrifice it at the beginning of the next end step.)
When this creature enters, target creature gets +1/+0 and gains indestructible until end of turn. (Damage and effects that say "destroy" don't destroy it.) | Warren Mahy

Thunder of Unity | Enchantment | Saga | (As this Saga enters step, add a lore counter. Sacrifice after III.)
I — You draw two cards and you lose 2 life.
II, III — Whenever a creature you control enters this turn, each opponent loses 1 life and you gain 1 life. | Clint Lockwood

Zurgo, Thunder's Decree | Legendary Creature | Orc Warrior | Mobilize 2 (Whenever this creature attacks, create two tapped and attacking 1/1 red Warrior creature tokens. Sacrifice them at the beginning of the next end step.)
During your end step, Warrior tokens you control have "This token can't be sacrificed." | Steve Prescott

Dragonclaw Strike | Sorcery | | Double the power and toughness of target creature you control until end of turn. Then it fights up to one target creature an opponent controls. (Each deals damage equal to its power to the other.) | Yeong-Hao Han

Songcrafter Mage | Creature | Human Bard | Flash
When this creature enters, target instant or sorcery card in your graveyard gains harmonize until end of turn. Its harmonize cost is equal to its mana cost. (You may cast that card from your graveyard for its harmonize cost. You may tap a creature you control to reduce that cost by {X}, where X is its power. Then exile the spell.) | Irina Nordsol

Temur Battlecrier | Creature | Orc Ranger | During your turn, spells you cast cost {1} less to cast for each creature you control with power 4 or greater. | Brent Hollowell

Temur Tawnyback | Creature | Beast | When this creature enters, draw a card, then discard a card. | Brian Valeza