Plains

Jhoira's Familiar

Flying
Historic spells you cast cost {1} less to cast. (Artifacts, legendaries, and Sagas are historic.)

Temporal Machinations

Return target creature to its owner's hand. If you control an artifact, draw a card.

Tetsuko Umezawa, Fugitive

Creatures you control with power or toughness 1 or less can't be blocked.

Teferi, Timebender

+2: Untap up to one target artifact or creature.
−3: You gain 2 life and draw two cards.
−9: Take an extra turn after this one.

Sparring Construct

When this creature dies, put a +1/+1 counter on target creature you control.

Divination

Serra Angel

Flying
Vigilance (Attacking doesn't cause this creature to tap.)

Aesthir Glider

Befuddle

Target creature gets -4/-0 until end of turn.
Draw a card.

Zahid, Djinn of the Lamp

You may pay {3}{U} and tap an untapped artifact you control rather than pay this spell's mana cost.
Flying

Meandering River

This land enters tapped.
{T}: Add {W} or {U}.

Island

Juggernaut

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

Teferi's Sentinel

As long as you control a Teferi planeswalker, this creature gets +4/+0.

Knight of New Benalia

Niambi, Faithful Healer

When Niambi enters, you may search your library and/or graveyard for a card named Teferi, Timebender, reveal it, and put it into your hand. If you search your library this way, shuffle.

Daring Archaeologist

When this creature enters, you may return target artifact card from your graveyard to your hand.
Whenever you cast a historic spell, put a +1/+1 counter on this creature. (Artifacts, legendaries, and Sagas are historic.)

Gideon's Reproach

Gideon's Reproach deals 4 damage to target attacking or blocking creature.

Relic Runner

This creature can't be blocked if you've cast a historic spell this turn. (Artifacts, legendaries, and Sagas are historic.)