Look at the top three cards of your library. Put one of them into your hand, put one of them on the bottom of your library, and exile one of them. You may play the exiled card this turn.
Golden Rule - Whenever a token enters, you may have target player other than its controller create a token that's a copy of it, then you draw a card if an opponent created a token this way. Do this only once each turn.
Whenever an opponent casts a spell, you may reveal the top card of your library. If you do, counter that spell if it has the same mana value as the revealed card.
Surveil 3. (Look at the top three cards of your library, then put any number of them into your graveyard and the rest on top of your library in any order.)Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
FlyingAt the beginning of your end step, create a Blood token for each player who lost life this turn.Whenever Strefan attacks, you may sacrifice two Blood tokens. If you do, you may put a Vampire card from your hand onto the battlefield tapped and attacking. It gains indestructible until end of turn.
Changeling (This card is every creature type.): Until end of turn, creatures you control have base power and toughness X/X and gain all creature types.
As an additional cost to cast this spell, sacrifice a creature.Creatures you control gain indestructible until end of turn. Put a +1/+1 counter on each creature you control. (Damage and effects that say "destroy" don't destroy those creatures.)
Choose target instant or sorcery spell that targets only a single permanent or player. Copy that spell for each other permanent or player the spell could target. Each copy targets a different one of those permanents and players.
Enchant creature you controlWhen enchanted creature deals combat damage to a player, sacrifice it and attach this Aura to a creature you control. If you do, untap all creatures you control and after this phase, there is an additional combat phase.
Spree (Choose one or more additional costs.)+ — Copy target instant spell, sorcery spell, activated ability, or triggered ability. You may choose new targets for the copy.+ — Change the target of target spell or ability with a single target.