The Final Tuna

Flash, flying
If an opponent would begin another turn, you
may gain control of that opponent until the end
of the turn.
You may cast nonland cards as though they had
flash.
"Long ago the Tuna were considered a delicacy that
we consumed by the thousands, but now the lone
member of their species rages with fire against his
creators. I regret nothing."
- Schwartz, The Dolphin King