Ravnica Allegiance

End-Raze Forerunners | Creature | Boar | Vigilance, trample, haste When End-Raze Forerunners enters the battlefield, other creatures you control get +2/+2 and gain vigilance and trample until end of turn. | Mathias Kollros

Wrecking Beast | Creature | Beast | Riot (This creature enters the battlefield with your choice of a +1/+1 counter or haste.) Trample | Izzy

Emergency Powers | Instant | | Each player shuffles their hand and graveyard into their library, then draws seven cards. Exile Emergency Powers. Addendum — If you cast this spell during your main phase, you may put a permanent card with mana value 7 or less from your hand onto the battlefield. | Chris Rallis

Knight of the Last Breath | Creature | Giant Knight | {3}, Sacrifice another nontoken creature: Create a 1/1 white and black Spirit creature token with flying. Afterlife 3 (When this creature dies, create three 1/1 white and black Spirit creature tokens with flying.) | Milivoj Ćeran

Captive Audience | Enchantment | | Captive Audience enters the battlefield under the control of an opponent of your choice. At the beginning of your upkeep, choose one that hasn't been chosen — • Your life total becomes 4. • Discard your hand. • Each opponent creates five 2/2 black Zombie creature tokens. | Dmitry Burmak

Bedeck // Bedazzle | Instant // Instant | | Target creature gets +3/-3 until end of turn. // Destroy target nonbasic land. Bedazzle deals 2 damage to target opponent or planeswalker. | Randy Vargas

Sphinx of the Guildpact | Artifact Creature | Sphinx | Sphinx of the Guildpact is all colors. Flying Hexproof from monocolored (This creature can't be the target of monocolored spells or abilities your opponents control.) | Milivoj Ćeran

Gate Colossus | Artifact Creature | Construct | This spell costs {1} less to cast for each Gate you control. Gate Colossus can't be blocked by creatures with power 2 or less. Whenever a Gate enters the battlefield under your control, you may put Gate Colossus from your graveyard on top of your library. | Izzy