mtg arena trade cards | Promotional Each of those creatures deals damage equal to its power to the other. These MTG arena cards are

These can be solid choices since they just cost you time to use, but don't put you down a card in the game

Many Soldiers can be found in white, but they also appear across all colors of Magic

Being able to remove any amount of opponent creatures from the game for a turn is a very useful option

Gloyd Orangeboar Fierce Competitor is just a great card for slowing an opponent while you build your board of characters

As far as what a "Ring" card could be, there are a number of Ring cards that already exist in Magic (Sol Ring, Rings of Brighthearth, etc.)

Brawl Legal Vintage Legal Timeless Legal Commander Legal Pauper Not Legal Oathbreaker Legal Penny Legal Hanweir, the Writhing Township Legendary Creature Eldrazi Ooze Trample, haste Whenever Hanweir attacks, create two 3/2 colorless Eldrazi Horror creature tokens that are tapped and attacking