If your life total can't change, you can't pay a cost that includes the payment of any amount of life other than 0 life
Tamiyo, Inquisitive Student / Tamiyo, Seasoned Scholar I find it fun to have reasons to attack with 0-powered creatures, so I want to like Tamiyo, Inquisitive Student but the defensive nature of this moonfolk, and the difficulty of drawing a third card is not as trivial as you might think
Some Magic: The Gathering cards hold value very well, while others fluctuate heavily
Last year, the rapper Post Malone, a huge fan of the game, told Howard Stern he paid US$800,000 for the same card
Worldly Tutor - Read the card
This allows you to save a great deal of mana, and get a ton of value out of cards like Colossus Hammer that possess a very low mana cost, but a very high equip cost