Probably the card design categories as well, since if you know a lot of the categories you know what strategies to expect, or even build.
Things like
Removal - spells and abilities that get rid of permanents you don't like
Board wipes - cards that clear the board of all creatures (including your own), and sometimes other permanents too.
Ramp - cards that get your more mana than you're usually "supposed" to have at a stage in the game.
Card Draw - spells or abilities with the magic words "draw a card", or something similar
Looting - spells and abilities that discard a number of cards and draw a number of cards.
Wheels - spells that discard your entire hand and draw a number of number of cards.
Cantrips - a minor effect with the words "draw a card" tacked onto it.
Xerox spells - 1-2 mana Cantrips with the only effect being some library manipulation + "draw a card". Usually blue.
Counters - spells and abilities with the magic words "counter target spell", sometimes with a condition for the counter. Usually blue.
Beaters - big creatures
Mill cards - cards that put the top card(s) of someone's libraries into your graveyard.
Reanimators - cards that drag a creature from a graveyard to the battlefield
Clones - cards that enter as a copy of something
Tribal - cards that care about creature types, like goblins, angels, etc.
Burn - spells and abilities that directly damage your opponents. Usually red.
Stax - cards that interfere with the normal plans of both you and each of your opponents, hopefully your opponents a lot more
Tutors - spells and abilities that search for a specific card in your library
Fog effects - spells and abilities that prevent all damage for a turn, usually from creatures.
Any I'm missing?
It does cool things, but it's definitely a "Mark Rosewater designs a perpetual card that stays on the side" design. Like dungeons, attractions, day/night, etc.