Learn more: Ed Greenwood, "Wyrms of the North: Voaraghamanthar," in Dragon Magazine 258 (April 1999) Eric L
Interestingly, each copy is a disproportionate threat tied to each opponents' land count, and it especially punishes players who rely on land ramp as their source of acceleration, sometimes smashing as a 10/4 or greater
Once per chain, when a Trap is activated while Canadia is in the GY, it can be Special Summoned as a Monster (Aqua/WATER/Level 2/1200 ATK/0 DEF)
Its pretty intuitive to pay a cheaper cost to get a little more than your manas worth later
Up to thrice per turn, when you activate a "Purrely" Quick-Play Spell Card (Quick Effect): You can attach that card on the field to this card as material, then you can Set 1 "Purrely" Trap directly from your Deck
Similarly, cards may become staples as other decks that use the card are promoted on to the Tier List