His -5 gives you an emblem that makes it so you can tap your Mountains to deal one damage to any target
Creature Ins And Outs Biogenic Ooze - Out This expensive creature generates two Ooze tokens and adds counters to them each turn, and can even create more tokens as a mana ability, but it's simply too costly at five mana and four mana to activate the ability
You can then turn it face up, usually with an effect, for its disguise cost
Repulse took an already good effect (bounce) and added a "draw a card" clause
but with its Spiked Retribution ability, youll either quickly take it back or deal a hefty five points of damage to your opponent's life total
Susan Foreman and The Second Doctor lets you jury-rig that all-important combination of card advantage and mana production in the command zone, and it guarantees a good opening curve