Store cards in a cool, dry place away from direct sunlight
Loot, the Key to Everything Loot, the Key to Everything provides an interesting build around effect, incentivizing you to have different card types
Fervent Charge is the Mardu classic that spiked when Isshin was printed, and it remains solid to this day
Akroma, Vision of Ixidor & Bruse Tarl, Boorish Herder Akroma, Vision of Ixidor & Falthis, Shadowcat Familiar Akroma, Vision of Ixidor & Anara, Wolvid Familiar Bruse Tarl, Boorish Herder & Jeska, Thrice Reborn - Use Bruse to give double-strike to a creature with evasion, then use Jeska triple that creature's damage
If it weren't so expensive, it would be in most Commander decks as well (assuming you're in a bracket that allows game changers)
However, it can absolutely come in clutch