Rift Researcher

If a position on the field is unusable,
this card may attack directly.
When summoned, the position in front of this
card is unusable for 2 turns.
During your turn, after 4 turns have passed
since this card was summoned or repositioned,
you may reposition this card to an empty
creature position on your side of the field.
Then, reactivate this card's summon effect.