UP EMD DDA40X

Haste, trample, lifelink, mechanical issues
(At the beginning of your upkeep, tap UP EMD DDA40 X. Then flip a coin. If you win the coin flip, untap UP EMD DDA40 X)
When UP EMD DDA40X enters the battlefield, tap it. Then flip a coin. If you
win the flip, untap UP EMD DDA40X.