"Summoning sickness" applies only to creatures, not to other permanents. You may tap a noncreature permanent to pay for an ability with {T} in its cost even if the permanent entered that turn.
01-10-2005
wotc
Tapping an Aura or Equipment doesn't tap the creature it's attached to and vice versa. Tapped enchantments work normally. Tapped artifacts work normally unless they say otherwise.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.