2 cards where the name includes “chromium”

Chromium {2}{W}{W}{U}{U}{B}{B}

Legendary Creature — Elder Dragon

Flying

Rampage 2 (Whenever this creature becomes blocked, it gets +2/+2 until end of turn for each creature blocking it beyond the first.)

At the beginning of your upkeep, sacrifice Chromium unless you pay {W}{U}{B}.

7/7

Illustrated by Edward P. Beard, Jr.

Standard
Brawl
Pioneer
Historic
Modern
Pauper
Legacy
Penny
Vintage
Commander

Chromium, the Mutable {4}{W}{U}{B}

Legendary Creature — Elder Dragon

Flash

This spell can’t be countered.

Flying

Discard a card: Until end of turn, Chromium, the Mutable becomes a Human with base power and toughness 1/1, loses all abilities, and gains hexproof. It can’t be blocked this turn.

7/7

Illustrated by Chase Stone

Standard
Brawl
Pioneer
Historic
Modern
Pauper
Legacy
Penny
Vintage
Commander

It is the moment of discovery, the triumph of the mind, and the end of these results.