collector booster box tarkir dragonstorm - Play have for collectors and dragon fans. Magic the Gathering - Tarknir

Beyond the most obvious useif youre using attacks that are boosted by the number of cards on the opponents benchif someone is leaving space for their vital Ralts to support their Mewtwo, or a Charmander that stubbornly wont come out to build their Charizard, filling that slot with whichever card they sacrificed up front would be extremely funny.

I will always go to Break Open as the worst card ever, u/BlizzardMayne commented

The community outreach is the sole reason Id recommend it

If you do, you may activate the lesser production ability of any building of prestige 5 or lower you control

apply these effects this turn

The rest of the deck contains heavy disruption like Dimension Shifter and Macro Cosmos