Collective Restraint [Invasion] Commander 2013 −8: Search your library for

−8: Search your library for any number of Dragon creature cards

where X is that card's mana value

Urza decided to create one versatile being

Set: Arabian Nights Type: Artifact Creature — Spirit Rarity: Rare Cost: {4} Flying (This creature can't be blocked except by creatures with flying or reach

create that many 1/1 colorless Tetravite artifact creature tokens

Collective Restraint [Invasion] Commander 2013 −8: Search your library forSet: Invasion Type: Enchantment Rarity: Rare Cost: {3}{U} Domain Creatures can't attack you unless their controller pays {X} for each creature they control that's attacking you, where X is the number of basic land types among lands you control.