Stronghold Arena [Dominaria United]

Kicker G and/or W (You may pay an additional G and/or W as you cast this spell.)

When Stronghold Arena enters the battlefield, you gain 3 life for each time it was kicked.

Whenever one or more creatures you control deal combat damage to a player, you may reveal the top card of your library and put it into your hand. If you do, you lose life equal to its mana value.