
Tajic, Blade of the Legion | Legendary Creature | Human Soldier | Indestructible
Battalion — Whenever Tajic, Blade of the Legion and at least two other creatures attack, Tajic gets +5/+5 until end of turn. | James Ryman

Warleader's Helix | Instant | | Warleader's Helix deals 4 damage to any target and you gain 4 life. | Greg Staples

Fluxcharger | Creature | Weird | Flying
Whenever you cast an instant or sorcery spell, you may switch Fluxcharger's power and toughness until end of turn. | Willian Murai

Ral Zarek | Legendary Planeswalker | Ral | +1: Tap target permanent, then untap another target permanent.
−2: Ral Zarek deals 3 damage to any target.
−7: Flip five coins. Take an extra turn after this one for each coin that comes up heads. | Eric Deschamps

Carnage Gladiator | Creature | Skeleton Warrior | Whenever a creature blocks, that creature's controller loses 1 life.
{1}{B}{R}: Regenerate Carnage Gladiator. | Ryan Barger

Exava, Rakdos Blood Witch | Legendary Creature | Human Cleric | First strike, haste
Unleash (You may have this creature enter the battlefield with a +1/+1 counter on it. It can't block as long as it has a +1/+1 counter on it.)
Each other creature you control with a +1/+1 counter on it has haste. | Aleksi Briclot

Gruul War Chant | Enchantment | | Attacking creatures you control get +1/+0 and have menace. | Dave Kendall