Mox Tantalite (Retro Foil Etched) [Secret Lair Drop Series] Arena League 2005 Set: Return to Ravnica Type:

Set: Return to Ravnica Type: Enchantment Rarity: Uncommon Cost: {4}{W} Creatures can't attack you or planeswalkers you control unless their controller pays {X} for each of those creatures

for example

Set: World Championship Decks 2000 Type: Artifact Creature — Masticore Rarity: Rare Cost: {4} At the beginning of your upkeep

{2}{U}{U}: Wall of Wonder gets +4/-4 until end of turn and can attack this turn as though it didn't have defender

Mox Tantalite (Retro Foil Etched) [Secret Lair Drop Series] Arena League 2005 Set: Return to Ravnica Type:Set: Secret Lair Drop Series Type: Artifact Rarity: Mythic Suspend 3{0} {T}: Add one mana of any color.