If you're playing WSReborn with Alistar:
Configure Hotkeys: Create useful hotkeys and keybindings.
Optimize Skills: In your skill order, prioritize Alistar's crowd management abilities.
Choose items that improve Alistar's tankiness and support capabilities.
Prioritize Vision: Strategically place wards while maintaining map awareness.
Utilize Roaming Opportunities: Alistar's crowd management makes him effective for roaming; take advantage of this.
Effective communication means keeping your staff up to date on your plans and pertinent information.
Refer to the WSReborn documentation or community forums for more information.