Juggernaut

Juggernaut attacks each combat if able.
Juggernaut can't be blocked by Walls.

Aether Spellbomb

{U}, Sacrifice Aether Spellbomb: Return target creature to its owner's hand.
{1}, Sacrifice Aether Spellbomb: Draw a card.

Vigilance
{2}: Add one mana of any color.

When Meteor Golem enters, destroy target nonland permanent an opponent controls.

{3}: Jousting Dummy gets +1/+0 until end of turn.

{T}: Add {C}.
{2}, {T}, Sacrifice Buried Ruin: Return target artifact card from your graveyard to your hand.

Equipped creature gets +1/+1.
Equip {1} ({1}: Attach to target creature you control. Equip only as a sorcery.)

Draw three cards. Then discard two cards unless you discard an artifact card.

{T}: Add one mana of any color.
{T}: Target creature becomes the color or colors of your choice until end of turn.

{1}, Sacrifice a Scarecrow: Draw a card.
{4}, {T}: Return target artifact creature card from your graveyard to the battlefield.

{5}, {T}, Sacrifice Lightning-Core Excavator: It deals 3 damage to any target.

When Archaeomender enters, return target artifact card from your graveyard to your hand.

Thriving Isle enters tapped. As it enters, choose a color other than blue.
{T}: Add {U} or one mana of the chosen color.