Enthusiastic Mechanaut

Flying
Artifact spells you cast cost {1} less to cast.

Scuttling Butler

At the beginning of combat on your turn, if you control two or more multicolored permanents, Scuttling Butler gains double strike until end of turn.

Relentless Raptor

Vigilance
Relentless Raptor attacks or blocks each combat if able.

Sky Terror

Needle Spires

Needle Spires enters tapped.
{T}: Add {R} or {W}.
{2}{R}{W}: Needle Spires becomes a 2/1 red and white Elemental creature with double strike until end of turn. It's still a land.

Veteran Motorist

When Veteran Motorist enters, scry 2.
Whenever Veteran Motorist crews a Vehicle, that Vehicle gets +1/+1 until end of turn.

Regal Leosaur

Mutate {1}{R/W}{R/W} (If you cast this spell for its mutate cost, put it over or under target non-Human creature you own. They mutate into the creature on top plus all abilities from under it.)
Whenever this creature mutates, other creatures you control get +2/+1 until end of turn.