Assault Strobe

Target creature gains double strike until end of turn. (It deals both first-strike and regular combat damage.)

Rush of Adrenaline

Target creature gets +2/+1 and gains trample until end of turn.

Flame Slash deals 4 damage to target creature.

Flying, haste
Impetuous Sunchaser attacks each combat if able.

As an additional cost to cast this spell, sacrifice a creature.
Collateral Damage deals 3 damage to any target.

When Goblin Arsonist dies, you may have it deal 1 damage to any target.

Gain control of target creature until end of turn. Untap it. It gains trample and haste until end of turn.

Whenever you cast an instant or sorcery spell, Kiln Fiend gets +3/+0 until end of turn.

Lightning Bolt deals 3 damage to any target.

Whenever you cast a noncreature spell, this creature deals 1 damage to each opponent.

Whenever you cast an instant or sorcery spell, this creature deals 2 damage to each opponent.