Flash
When this creature enters, you may change the target of target instant or sorcery spell with a single target to this creature. // As this land enters, you may pay 3 life. If you don't, it enters tapped.: Add .

Whenever the research team stepped out, the specimen emerged to conduct experiments of its own. // As long as the scientists were present, the specimen floated patiently or swam quietly about, biding its time, watching.