If a creature is about to die to something unrelated to Vampiric Dragon, then go ahead and spend two mana to put your mark on the creature, and then when it dies, you'll get a +1/+1 counter
Put one of them into your hand and the rest on the bottom of your library in any order
Varina, Lich Queen [Best Aggressive Card Filtering and Token Burst] Varina, Lich Queen rewards attacking with Zombies by turning combat into card selection, lifegain, and graveyard setup all at once
You target an opponent when The Rise of Sozin's second chapter ability is put on the stack, but you don't name a card until it resolves
Prowess is also great to pair with spells that have the flashback ability as you can essentially cast the same spell twice
Discarding cards is a disadvantage, but like most well designed games, Magic has given us plenty of ways to spin that disadvantage into an advantage