2 cards where the name includes “grand” and the name includes “arbiter”

Dovin, Grand Arbiter (Crimson Vow Commander #153)

Dovin, Grand Arbiter {1}{W}{U}

Legendary Planeswalker — Dovin

+1: Until end of turn, whenever a creature you control deals combat damage to a player, put a loyalty counter on Dovin, Grand Arbiter.

−1: Create a 1/1 colorless Thopter artifact creature token with flying. You gain 1 life.

−7: Look at the top ten cards of your library. Put three of them into your hand and the rest on the bottom of your library in a random order.

Loyalty: 3

Illustrated by Kieran Yanner

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny
Grand Arbiter Augustin IV (Double Masters 2022 #221)

Grand Arbiter Augustin IV {2}{W}{U}

Legendary Creature — Human Advisor

White spells you cast cost {1} less to cast.

Blue spells you cast cost {1} less to cast.

Spells your opponents cast cost {1} more to cast.

The Arbiter is a conduit of justice, a will so disciplined that it dispenses justice without ego or remorse.

2/3

Illustrated by Zoltan Boros & Gabor Szikszai

Standard
Alchemy
Pioneer
Explorer
Modern
Historic
Legacy
Brawl
Vintage
Timeless
Commander
Pauper
Oathbreaker
Penny

In the blink of an eye, they strode from deep snow to the end of this search.