Solstice Mage

Through a unique understanding of the ebb and flow of arcane energies, you have learned to enhance the effectiveness of some schools of magic at the cost of weakening others.  At the end of a long rest, you must choose from one of the following Solstice Forms:

Summer Solstice Form: Conjuration, Divination, Evocation, Transmutation

Winter Solstice Form: Abjuration, Enchantment, Illusion, Necromancy

Spells from schools associated with the chosen Solstice Form gain the following benefits: duration is extended by 50% of the base duration of the spell; any 1's on damage dice may be rerolled once. 

Additionally, you may choose to empower a spell you cast associated with the chosen Solstice Form a number of times equal to your proficiency modifier.  You may choose one of the following bonuses for this spell: 

-Ignore resistance of the targets, with immunity of targets treated instead as resistance
-Base duration is doubled, ignoring the 50% duration bonus from initially selecting this form
-Spell casting time is doubled but material component costs are ignored
-Spell may be cast as a bonus action, but expends a spell slot one level higher than the spell cast

Spells from schools associated with the opposing and unchosen Solstice Form suffer consistently from the following effects: targets of damaging spells are treated as they though have resistance to the spell; any resistances to spells from these schools is treated as immunity; duration is reduced by 50% of the duration of the spell; any maximum values on damage dice (i.e. '10' on a 10-sided die, '6' on a 6-sided die, etc.) must be rerolled once.