Mesa Enchantress's ability will resolve before the spell that caused it to trigger
Many cards like Akki Battle Squad specifically say that you may only have one additional combat phase
Where one player sees Beseech as copies 5-8 of Sheoldred, the Apocalypse in Standard, another cEDH player sees it as a toolbox tutor to find whatever answer or win condition the game needs
Its rarity is amplified by the fact that it was never printed outside of this tournament
Learn more: Icewind Dale: Enhanced Edition Shessra, Death's Whisper Shessra is a half-elf warlock who is obsessed with plundering the secrets of the ancient empire of Netheril, a realm ruled by powerful wizards whose fall brought the vast desert of Anauroch into being
In Modern, you have years and years of land cycles to choose from, and the one that stood out the most as being incomplete was the fastland cycle from Scars of Mirrodin