When I personally think of a theme such as 'Loyalty', it usually comes hand-in-hand to the word, Betrayal. In a sense, Loyalty is a measure of how devoted someone or something is to another being, and in this sense, a Shard of Loyalty implies that a creature would never 'switch sides' in the midst of battle, rather than not dying (running away to your deck) when it was on the brink of death.
I suppose Loyalty would better represent something that 'counters' Steal or other similar cards that try to take things that belong to you, but that's just my concept...
CURATOR COMMENT
This Card is Crucible Approved for the Shard Madness! Competition.
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