For example, once we get some "draw a second card" creatures on the battlefield, it's usually best to cast Consider during our turn even though it's an instant since it, plus our draw step, will give us the two cards we need to trigger all of our payoffs
The Legend of Kyoshi // Avatar Kyoshi's Value in MTG $38.60 for a Borderless foil version $16.38 for Borderless non-foil $7.49 for regular non-foil 10 10 - Fire Lord Azula One of the main villains in Avatar: The Last Airbender and Zuko's own sister, Azula appears in various ways in the Avatar set, like the returning lesson cards in the form of Azula Always Lies, and as a creature whose story arc reaches its climax with Fire Lord Azula
One last card worth shouting out is Artificial Evolution, a Blue Instant from Onslaught that changes the text of a card by replacing a Creature type with another Creature type
Mana Drain a counterspell for just two blue, the same cost as the actual card called Counterspell
Mind Twist has (rightly) been banned in every competitive format from Legacy down for so long, an entire generation has grown up without ever seriously competing in a format warped around its existence