Stay tuned for more MtG tips and tricks articles, including 15 best March of the Machine Cards for Commander and 11 Most expensive March of the Machine Cards
When you play a card with the learn mechanic, like Professor of Symbology, a prompt appears on the screen asking if you want to learn
To resolve the second mode, starting with you (or, in unusual cases, the player whose turn it is if not you) and proceeding in turn order, each player chooses a creature they control to sacrifice
cards as Active at the end of your turn but thats a pretty useful ability
But the real power comes from letting you cast an artifact from your graveyard each turn
But, having a free untap ability thats 1 mana cheaper than more broadly targeting cards like Vizier of Tumbling Sands and Clever Conjurer is really helpful