Mirkwood Meditator

The ability of Mirkwood Meditator overwrites any previous effects that set its power and/or toughness to specific values. Other effects that set these characteristics to specific values that start to apply after the ability resolves will overwrite that part of the effect.

Whenever a land you control enters, each landfall ability of permanents you control will trigger. You can put them on the stack in any order. The last ability you put on the stack will be the first one to resolve (as a result, you can have those abilities resolve in the order of your choosing).

Effects that modify the power or toughness of Mirkwood Meditator without setting it will apply to its new base power and toughness no matter when they started to take effect. The same is true for counters that change its power and toughness.