Teferi, Mage of Zhalfir

Flash
Creature cards you own that aren't on the battlefield have flash.
Each opponent can cast spells only any time they could cast a sorcery.

Surrak Dragonclaw

Flash
This spell can't be countered.
Creature spells you control can't be countered.
Other creatures you control have trample.

You may cast spells as though they had flash.

Flash (You may cast this spell any time you could cast an instant.)
Flying
You may cast spells as though they had flash.

Flash
Flying
During each opponent's end step, you may cast spells as though they had flash.

If this card is in your opening hand, you may begin the game with it on the battlefield.
You may cast spells as though they had flash.

As this land enters, you may pay 3 life. If you don't, it enters tapped.
{T}: Add {U}.

Flash
When this creature enters, you may change the target of target instant or sorcery spell with a single target to this creature.