Defender
: Put a hatchling counter on Ludevic's Test Subject. Then if there are five or more hatchling counters on it, remove all of them and transform it.
Hexproof (This creature can't be the target of spells or abilities your opponents control.)
Whenever a creature dies, put a +1/+1 counter on Lumberknot.
Animated by geists fused in its oak, it hungers for more life to add to its core.
Target player shuffles up to three target cards from their graveyard into their library.
Flashback (You may cast this card from your graveyard for its flashback cost. Then exile it.)
Mikaeus, the Lunarch enters the battlefield with X +1/+1 counters on it.
: Put a +1/+1 counter on Mikaeus.
, Remove a +1/+1 counter from Mikaeus: Put a +1/+1 counter on each other creature you control.