Your opponent is likely to choose Free to use up your resources in the hand, meaning that often you will pay 6 mana to get a random dragon, which should hopefully have at least a mana value of 7 (which, with Ur-Dragon rebate, would be 6)
Thats because Beast Within costs three mana, is an instant and can target any permanent
If you're tired of every match being against Lost Box, Lugia VStar, and Charizard ex, seeing all three lose key pieces and become less common will be a breath of fresh air
Look out for high toughness creatures from Midnight Hunt, such as Bird Admirer and Drownyard Amalgam if you pick an early Catapult Fodder
If damage would be dealt to it, prevent that damage
Turn it face up any time for its disguise cost.) If the target creature is tapped or is affected by a spell or ability that says it can't block, then it doesn't block