First printed in The Lost Caverns of Ixalan (2023)

Cosmium Blast

Instant

Cosmium Blast deals 4 damage to target attacking or blocking creature.

Cosmium is the tangible essence of Chimil's power. The Oltec's cosmium-laced tattoos ensure that power can be called upon when needed.

Legality

Legal in: Standard, Pioneer, Modern, Legacy, Vintage, Pauper, Future Standard, Historic, Timeless, Penny Dreadful, Gladiator, Commander, Duel Commander, Pauper Commander, Tiny Leaders, Oathbreaker, Brawl, Standard Brawl, Competitive Brawl
Not legal in: Alchemy, Premodern, Old School 93/94, PreDH

MTGO price: 0.002 TIX, the cheapest non-foil print (average sell price on GoatBots, 2 Nov 2026).

Win rates of Cosmium Blast in Limited
Set	GIH WR	vs set	IWD	Games
The Lost Caverns of Ixalan (LCI), Premier Draft	53.9%	-1.5	-0.1	42761
The Lost Caverns of Ixalan (LCI), Sealed	52.7%	-2.9	-2.9	3871

Set

GIH WR

vs set

IWD

Games

The Lost Caverns of Ixalan (LCI), Premier Draft

53.9%

-1.5

-0.1

42761

The Lost Caverns of Ixalan (LCI), Sealed

52.7%

-2.9

3871