Being an instant also lets you leverage the ability by holding up countermagic, card draw, or bouncing your opponents board states to remove all blockers before your turn
Aurora - Holding Court Uncommon Card 6/204, Amber Ink Princesses are one of the main themes of Fabled , and although "Aurora - Holding Court" isn't anything spectacular, it is a card that would be beneficial for a Princess deck
Glimmers cant take any actions on the turn theyre played (aka summoning sickness) and players turns are split into its own untap, upkeep, draw mnemonic for cleaning up and preparing for the main phase: ready, set, draw returns all exhausted cards to their upright position, handles any start-of-turn effects and lets players draw one card from the top of their deck
Simply being two good creatures for one card is a great start, but it then turns any and all of your artifacts into mana rocks to fuel its final ability, giving you free cards off the top of your deck