Here is a rather unique problem related to this topic: Is the triggered ability of Caged Sun a mana ability or not
The 0 ability lets you take infinite turns with Time Vault while the -3 ability can tutor up Black Lotus
If you can protect Kunoros with Auras and Equipment, he can probably lock an opponent or two out of the game entirely, then take advantage of their weakened state by attacking them for huge lifelink damage
This combination was a Legacy staple that nowadays has been relegated to a tier-2 or tier-3 strategy due to power creep, but still, it's a headache to play against when played well
This is another way to identify a card, and can also clue you in to some special, often valuable cards: [7] Secret rares have a collector number higher than the total # of cards (supposedly) printed in that set, for instance "65/64" or "110/105." Secret rares can range anywhere from a couple of dollars to hundreds of dollars
The activated ability of The Water Crystal isnt too interesting outside of a Limited format, but could lead to funny moments