You have to pay life for the card draw, and that means you need the Lifelink, and not just from this card, and you also need additional life gain in some of your other cards
Creature - Insect Color tag templates(None) Sengir Vampire Flying (This creature can't be blocked except by creatures with flying or reach.) Whenever a creature dealt damage by this creature this turn dies, put a +1/+1 counter on this creature
Considering youre generating a lot of additional mana, you can always go for a tried and tested Torment of Hailfire or Crackle with Power
Obviously, you dont want a sleeve thats going to look like youve had it in the attic for the past 10 years after just a couple of months or, god forbid, a couple of weeks
At least not, if you have some lands assembled, because your creatures are big and strong
You can also hit a player with a powerful creature and then double up on that damage by using this red giants fling effect