Akhosto, Simic Experiment

+1: Draw a card or place a land from your hand onto the battlefield.
-5: Create an emblem with "Whenever you put a +1/+1 counter on target creature, you can add one mana of any colour to your manapool.".
-5: You get an emblem with "Whenever you add one mana to your mana pool, you gain 3 life.". Akhosto, Simic Experiment can be your commander.