sleeved card box BCW QuickFold Storage for Cards – 3 Pack – Not for Toploaders – Magnetic Closure – Holds 500-1200 Sleeved or Unsleeved Cards – MTG Card Storage : Toys & Games sleeved cards (maximum unsleeved card size suitable Realm Guard Boros MTG Deck

They still work in an office apparently too

The first wave of promo cards can be identified by their set number P1 and a unique logo in place of their rarity icon, indicating which event the promo card was available at

Even if this card wasn't as rare as it is, it would still top this list for the masterful artwork alone

it also has synergy in decks that care about casting spells (prowessstyle effects, whenever you cast a spell triggers, or stormadjacent strategies) since becoming prepared effectively lets you double up on its spell over time

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Her effects make her an indispensable card for tactical decks