Marrow-Gnawer

During your turn, each non-Equipment artifact and non-Aura enchantment you control with mana value 4 or greater is a 4/4 Elemental creature in addition to its other types and has indestructible, haste, and "Whenever this creature deals combat damage to a player, draw a card."

T, Pay 2 life, Tap X untapped tokens you control: Add X mana in any combination of colors. At the beginning of your end step, create a token that's a copy of target token you control. If that token is a Squirrel, instead create two tokens that are copies of it.

Vigilance Whenever you cast a spell, target opponent draws a card. Put a +1/+1 counter on target creature. It gains flying until end of turn. If this is the second time this ability has resolved this turn, you draw two cards.

Flying Zinnia gets +X/+0, where X is the number of other creatures you control with base power 1. Creature spells you cast gain offspring 2 as you cast them. (You may pay an additional 2 as you cast a creature spell. If you do, when that creature enters, create a 1/1 token copy of it.)

Haste Whenever Arthur and at least one other creature attack, look at the top six cards of your library. You may put a creature card from among them onto the battlefield tapped and attacking. Put the rest on the bottom of your library in a random order. Return that creature to its owner's hand at end of combat.

Lifelink Whenever Mr. Foxglove attacks, draw cards equal to the number of cards in defending player's hand minus the number of cards in your hand. If you didn't draw cards this way, you may put a creature card from your hand onto the battlefield.

At the beginning of each player's draw step, that player draws an additional card. Each player may play an additional land on each of their turns.

T: Add three mana of any one color.