Training Grounds

Activated abilities of creatures you control cost {2} less to activate. This effect can't reduce the mana in that cost to less than one mana.

Drafna's Restoration

Put any number of target artifact cards from target player's graveyard on top of their library in any order.

Twinning Staff

If you would copy a spell one or more times, instead copy it that many times plus an additional time. You may choose new targets for the additional copy.
{7}, {T}: Copy target instant or sorcery spell you control. You may choose new targets for the copy.

Wurmcoil Engine

Deathtouch, lifelink
When Wurmcoil Engine dies, create a 3/3 colorless Phyrexian Wurm artifact creature token with deathtouch and a 3/3 colorless Phyrexian Wurm artifact creature token with lifelink.

Corridor Monitor

When Corridor Monitor enters, untap target artifact or creature you control.

Sculpting Steel

You may have Sculpting Steel enter as a copy of any artifact on the battlefield.

Island

Myr Retriever

When Myr Retriever dies, return another target artifact card from your graveyard to your hand.

Chromatic Orrery

You may spend mana as though it were mana of any color.
{T}: Add {C}{C}{C}{C}{C}.
{5}, {T}: Draw a card for each color among permanents you control.