Words learned from Magic:TG

If you already know collective nouns, you learn a lot less from Magic The Gathering, but words which I first learned there include:

Welkin (the sky, the upper air, the firmament, or the Celestial sphere)
Rime (Hoar frost, greyish-white crystalline deposit of ice formed in clear still weather on vegetation, fences, etc)
Whelm (submerge, engulf, as in "overwhelm" and "underwhelm" :))
Sarkan (dragon in Slovak)