If a card is worth less than $3.00, it is considered bulk. Bulk cards are typically not worth selling on their own, since the shipping price radically impacts the percentage you can make on the card
It's a sizeable 4/5 Avatar Wizard with flash, and Gandalf the White allows the player to cast legendary spells and artifacts with flash as well, which can take the opponent by total surprise
Outside those two requirements, Kaalia needs just a little bit of mana acceleration and a backup plan : Kaalia can be a bit of a monolith commander, with her deck becoming unplayable without her on the board unless you have another way to get your big bad beaters into play without hard-casting them
Enact Doom's world domination with an army of villainous Doombots at your command and strategies to weaken your opponents while strengthening yourself
Without too much effort, the Promised End is a 7 drop, which is fairly achievable for the slow and the ramping decks
Since he only cares about the first instance of flipping coins, he wont work well with cards that flip consecutive coins