Begrellium, Mighty Guardian

Defender, Indestructible, Trample
When Begrellium, Mighty Guardian transforms,
create a 5/5 green elk spirit creature token with
haste.
During your next upkeep, transform Begrellium,
Mighty Guardian and put an aggression counter
on it.
When Begrellium, Mighty Guardian has two
aggression counters on it, it loses defender and
gains haste.