Are there major disadvantages to playing GB? This is my list, it seems like blighted agent is replaced by plaguestinger as an evasive 2 drop, rancor replaces d.strike with trample instead of unblockable, and we pick up phyrexian crusader as a resilient "end game". Finally IoK replaces counterspells like spell snare or spell pierce as disruption.
4 Glistener Elf
4 Ichorclaw Myr
4 Plague Stinger
4 Phyrexian Crusader
Spells (23)
4 Rancor
4 Might of old Krosa
4 Groundswell
4 Vines of Vastwood
4 Inquisition of Kozilek
2 Mutagenic Growth
1 Apostle's Blessing
4 Inkmoth Nexus
4 Woodland Cemetary
4 Verdant Catacombs
3 Marsh Flats
3 Overgrown Tomb
1 Forest
1 Swamp
1 Pendelhaven
4 Abrupt Decay
3 Relic of Progenitus
2 Viridian Corrupter
2 Spellskite
1 illness in the ranks
1 devour flesh
1 duress
1 Dismember