Aether Flash

Whenever a creature enters, Aether Flash deals 2 damage to it.

Magmasaur

Magmasaur enters with five +1/+1 counters on it.
At the beginning of your upkeep, you may remove a +1/+1 counter from Magmasaur. If you don't, sacrifice Magmasaur and it deals damage equal to the number of +1/+1 counters on it to each creature without flying and each player.

Circle of Protection: Red

{1}: The next time a red source of your choice would deal damage to you this turn, prevent that damage.

Enlightened Tutor

Search your library for an artifact or enchantment card, reveal it, then shuffle and put that card on top.

Lightning Bolt

Lightning Bolt deals 3 damage to any target.

Mother of Runes

{T}: Target creature you control gains protection from the color of your choice until end of turn.