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Hector reported:

Manlands/artifacts + mana cost change effects cause AI to crash while thinking

Manlands/artifacts + mana cost change effects cause AI to crash while thinking
When there is a line of play where there is a mana cost reduction/increase effect and a manland or artifact that can become a creature is in play, AI crashes during thinking.

Tested with mana cost changers:
Thorn of Amethyst http://gatherer.wizards.com/Pages/Card/ ... eid=140166 [^]
Sphere of Resistance
Feroz's Ban
Helm of Awakening
Glowrider
Squeeze

And cards that can become a creature upon activation:
Treetop Village http://gatherer.wizards.com/Pages/Card/ ... eid=202279 [^]
Faerie Conclave
Forbidding Watchtower
Spawning Pool
Blinkmoth Nexus
Chronatog Totem