Ulamog, the Defiler (Borderless) [Modern Horizons 3] Kobold Warrior except it's 1/4 and has

except it's 1/4 and has "This creature can't be blocked

Lightning tethers souls to the world

Set: Secret Lair Drop Series Type: Enchantment Rarity: Rare Cost: {1}{R} Cumulative upkeep—Add {R}

For the necromancer barons

Ulamog, the Defiler (Borderless) [Modern Horizons 3] Kobold Warrior except it's 1/4 and hasSet: Modern Horizons 3 Type: Legendary Creature Eldrazi Rarity: Mythic Cost: {10} When you cast this spell, target opponent exiles half their library, rounded up. WardSacrifice two permanents. Ulamog, the Defiler enters the battlefield with a number of +1 +1 counters on it equal to the greatest mana value among cards in exile. Ulamog has annihilator X, where X is the number of +1 +1 counters on it.