I have a card named , the effect of this card is "For each creature you control, Search your library for a creature with the same name and put it onto the battlefield. Then Shuffle your library".  After this phase can I then attack with the creatures gained this way or do they suffer from summoning sickness?  My guess is that If they do not have haste they suffer but doubling them seems to suggest a mirroring of the original creature at the time... Its a vague mechanic in all honesty
Note: this is intended to be a canonical question about summoning sickness.  "Summoning sickness", broadly, is the rule that stops you from attacking or paying {T} costs with a creature that you just played. But how exactly does it work? How does it interact with other rules and effects?  For example, if I'm trying to figure out how a creature is affected:   Does the status matter (tapped/untapped, face down/face up, etc.)? What if it came into play, but I didn't cast it? What if it's a token? What if it was on the battlefield when my turn started, but it wasn't a creature? What if it stops being a creature? What if it's a creature and also another card type? What if it's a double-faced card that just transformed? What if it changes control? What if it's a copy of another creature? Which of the creature's activated abilities can I use? Are any of its other abilities affected? Can I tap the creature to pay a cost that is not a {T} cost?   (These examples are primarily taken from questions about summoning sickness that have already been asked on the site)
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