Blood for the Blood God!

Flying, first strike, trample, haste

This spell costs less to cast for each card you've revealed this turn.

When this creature enters, you may say "I'm here." If you do, it deals 3 damage to target player.

As an additional cost to cast this spell, you may tap any number of untapped creatures you control. This spell costs less to cast for each creature tapped this way.

Explosive Singularity deals 10 damage to any target.

This spell costs less to cast, where X is the total power of creatures you control.

Volcanic Salvo deals 6 damage to each of up to two target creatures and/or planeswalkers.

Flying

When this creature enters, if you cast it from your hand, exile all cards from target opponent's hand.

When this creature leaves the battlefield, return the exiled cards to their owner's hand.

Exile the top seven cards of your library. Until end of turn, you may cast spells from among them.

If this spell was cast from your hand, add ten mana of any one color.

This spell costs less to cast for each different mana value among instant and sorcery cards in your graveyard.

Flying, prowess

Whenever you cast your second spell each turn, create a 4/4 red Dragon Elemental creature token with flying and prowess.