AI uses Arbor Elf incorrectly

**Describe the bug**
AI only uses Arbor Elf at the player's turn and untaps Forests just for nothing

**To Reproduce**
Steps to reproduce the behavior:
1. AI plays Forest
2. AI casts Arbor Elf
3. At the next turn AI casts something and taps Forest for it
4. AI uses Arbor Elf at the player's turn to untap Forest just for nothing

**Expected behavior**
AI should use ability of Arbor Elf as a deferred mana ability. And the more mana the Forest gives it, the higher priority it is to use it.

**Additional context**
Keep in mind Utopia Sprawl and same

**Desktop**
OS: Windows 10
Java Version: 1.8.0_202-b08
Forge Version: 1.6.59-SNAPSHOT-11.02

**Screenshots**