You came here in that? You are brave
All Agera work with a base-8 system (though of course, in GMing, for simplicity, I don’t). Accordingly, the Mysian system of measuring is based on 8s. From dolon to dolmelphion, the system is fairly straightforward, but, traditionally, after dolmelphion, it becomes a touch more complicated.
Throughout creation there are locations which serve as nexuses of sorts; conduits between one place and another. Such are the rules of translocation that only areas that border each other can be traversed by physical or magical means.
Mages/ wizards and such use cards (playing cards or tarot cards) as training tools. The patterns created by certain layouts of cards are mnemonic devices to teach key elemental associations and paths. With such interesting names as the Tree of Life, Phoenix's tail, Rythm of Heart, and Balance of the sphere, there pattern represent the matrices used by magic users to focus and present power. Spell processes can be represented by a sequence of cards.
So mages will often be seen handing around hands of cards.
Wizards will have a deck of cards with them. Since cards were used to train wizards in legerdemain, Since they have cards with them, they frequently know how to use them. Guild magic users often have a knack for fancy shuffles, palming cards, and a variety of card tricks and games.