Mechanics from Paper MtG

A couple of mechanics I miss from paper MtG that I think could be implemented into MtGPQ that would be fun:
- ‘X’ mana cost: It would be similar to the awaken cost but it would be able to take as much mana as you can feed into it and you choose when to set it off. The mana would have to reset at the beginning of your turn to keep the effects from being too insane. I’m thinking of spells like Steam of Life (1 mana = 1 life), Drain Life (2 mana = 1 drain life), and Disintegrate (1 mana = 1 damage). These would be powerful with a cascade but balanced otherwise I think. Another balancing factor is that this will eat all your mana and stop a combo which could be more frustrating than helpful.
- Circles of Protection: A support that will drain mana from you to prevent damage from a certain color or type of card. With only 10 cards in a deck, I think this would work better as protecting from a card type versus a color (random opponents make it impossible to prepare the right circle).
- Counter spell/Interrupts: A card that you keep charged up in your hand that will go out to counter a spell mid cast (Power Drain, Counter spell). I’m not sure if it would be better for there to be a pop-up window every time your opponent casts a spell or if it would just counter the next card no matter what it was. Maybe there could be variations to counter creature/spell/support. Maybe this should also be limited to only cancelling spells up to a certain cost.
- Lure: An ability that will force your opponent’s creatures to block this creature. Kind of like a reverse menace ability.