Goblin Ringleader

Create a 6/6 green Wurm creature token. Flashback 3G (You may cast this card from your graveyard for its flashback cost. Then exile it.)

2, T: Add B for each Swamp you control.

Target player draws two cards. Flashback—1U, Pay 3 life. (You may cast this card from your graveyard for its flashback cost. Then exile it.)

Target player sacrifices an attacking creature of their choice. Storm (When you cast this spell, copy it for each spell cast before it this turn. You may choose new targets for the copies.)

Flying As long as this card is in your graveyard and you control an Island, creatures you control have flying.

Firebolt deals 2 damage to any target. Flashback 4R (You may cast this card from your graveyard for its flashback cost. Then exile it.)

1G: This creature gets +2/+2 until end of turn. Activate only once each turn. Madness 0 (If you discard this card, discard it into exile. When you do, cast it for its madness cost or put it into your graveyard.)

Target player discards two cards. You gain 3 life for each land card discarded this way.