If that cost has no generic mana, the cost isn't reduced.
Fun is interpreted in different ways by different players
This The Lord of the Rings: Tales of Middle-earth Commander Deck set includes 1 ready-to-play deck of 100 Magic cards (2 Traditional Foil Legendary Creature cards, 98 nonfoil cards), a 2-card Collector Booster Sample Pack (contains 1 Traditional Foil or nonfoil special treatment card of rarity Rare or higher and 1 Traditional Foil special treatment Common or Uncommon card), 1 foil-etched Display Commander (a thick cardstock copy of the commander card with foil etched into the cards border and art), 10 double-sided tokens, 1 Helper card, 1 deck box (can hold 100 sleeved cards), 1 Life Wheel, 1 strategy insert, and 1 reference card
While it's true she has no way to restore loyalty, that's not really important, as for three mana you'll be perfectly happy getting one or two uses out of her, then having her sit on the battlefield causing problems
The Ur-Dragon also has a game-ending effect once it hits the board, refilling your hand and slamming more dragons into play for free
