This card is very difficult to destroy because in order to hit it with a removal spell likd Swords to Plowshares or a Doom Blade first another Instant, Sorcery or Artifact must be wasted in order to disarm its counter effect
With other amass cards, sacrifice outlets, and proliferate, that 1/1 Zombie Army turns into a real creature that can pressure planeswalkers and trade with opposing creatures more often than you expect
The paper is flimsy, and easier to fold and crease than usual
Sword of Forge and Frontier Land and card draw The Swords of series in Magic: The Gathering run a gamut of usefulness, but all of them cost three mana, grant protection from two colours, add +2/+2 and provide some kind of benefit if you can hit a player with a creature equipped with them
It pains me to admit it, but a lot of Minotaurs are in a word, bad
These two cards are great examples